Flower Bank – Whipps Cross Road
Black-tailed skimmer – Wanstead Park
Fungus Foray into Bushwood – 25 October 2014
On a lovely autumn morning, 30 people, a small baby and a dog gathered in Bush Wood for a fungus walk led by Tricia Moxey. Although Tricia warned that there was a possibility that there would be few fungi, she need not have worried. In fact, there was a group of Grey Fairy Bonnets right by where we had gathered! After that the group threw itself into fungi-finding with great gusto. With Tricia’s advice and identification tips we were treated to a wide range of species – more than 20 in all. These included Red-cracking Boletus, more Grey and White Fairy Bonnets growing on the ground, and Turkey Tail brackets and clusters of orange Hairy Curtain Crust on rotting wood. Delicate Fan fungi were found on smaller twigs. We also saw such beauties as Amethyst Deceiver, Verdigris Agaric and Stalked Puffball. The walk ended at the northern end of Wanstead Flats with the magical sight of a group of Fly Agarics. Thanks to Tricia’s informative talk, I think we all came away with a much better understanding of the importance of fungi for the natural environment. This value to the whole ecosystem highlights the dangers of the industrial-scale harvesting of wild fungi that is now taking place in parts of Epping Forest – and which must be stopped.
Sharon Payne, 25/10/2014
Bio-blitzing Perch Pond – 5 October 2014
As of 22nd October, the species list for the 5th October bio-blitz in Wanstead Park stands at 148, excluding plants and lichens. Probably the most popular activity on the day was the pond-dipping, organised by Derek McEwan. Derek almost had to be dragged away from the east end of Perch Pond, where he set up base, such was his enthusiasm for discovering what was in the waters of that lake. Derek’s species summary makes fascinating reading. Summarising, he found:
- 3 species of freshwater leech (subclass Hirudinea).
- 1 species of horsehair worm (phylum Nematomorpha).
- 12 species of molluscs, including a variety of freshwater snails and mussels.
- 2 species of crustaceans, the most dramatic of which was a large American Signal Crayfish.
- 1 species of true fly (order Diptera).
- 9 species of water bugs, the most common being Greater Water-Boatman, and with four species of Lesser Water-Boatman.
- 6 species of water beetle, including the fascinating Screech Beetle (Hygrobia hermanni), which let out an audible squeak when touched.
- 6 dragonfly and damselfly species, including the larvae of Common Blue Damselfly and Red-eyed Damselfly; there was also a very late flying Black-tailed Skimmer.
- 2 fish species, Perch and Roach.
Derek commented: “It’s always dangerous to make assumptions based on just one set of data, but there are some interesting general trends. There seems to be a very good variety of freshwater molluscs in the Perch Pond, especially water snails and bivalves. Crustaceans, including shrimps, water slaters and Signal Crayfish, are also plentiful. On the other hand there were no caddis, alder or may-fly larvae, and very few Odonata larvae – even in the littoral zone at the margins of the pond. This is despite the pond-dipping always being attended by several flying adults e.g. Migrant Hawkers and Common Darters. There were also very few predatory water beetles with just one specimen of Acilius sulcatus and no Dysticus or Agabus species. I’m not sure if it’s because of the late time of year, or if the numbers of predatory fish are having an impact and the larger, more conspicuous beetles are not having the chance to reach maturity. It’s also possible that the algal blooms may be having an impact, but there’s enough clear surface water that I think it’s a little unlikely. The scarcity of Lesser Water-Boatmen (Family Corixidae) was also surprising, with just a few individuals found during the day. Although well-represented, there were also fewer Greater Water-Boatmen (Notonecta glauca) than I had expected and just a single Hesperocorixid and Water Scorpion (Nepa cineria). Again, I would have expected to find more in a lake of this size/water depth. Further studies should help – it would be especially interesting to compare the Perch Pond with the other lakes in the Park like the Shoulder of Mutton Pond, to see how water quality/invertebrate life varies across the site.”
The Wren Group is preparing plans to do more bio-blitzes in 2015. Watch this space!
Waterbird numbers start to climb – 12 October 2014
Every autumn it happens. But it’s still exciting when it does – the gradual filling out of Wanstead Park’s lakes with wintering wildfowl. Last year the clear winners were Gadwall, whose numbers peaked at more than 300 around the turn of the year, in the process establishing Wanstead Park as one of the key sites in London for the species. This year this unobtrusive dabbling duck seems to be at it again, with numbers logged on the WeBS waterbird count on Sunday 12th October reaching 101. It will be interesting to see how many more arrive in the next two months. Even more unobtrusive are Common Teal, which often tuck themselves away under overhanging vegetation in quieter parts of the Ornamental Water. WeBS counters found seven birds on Sunday but this species – another dabbling duck – is notoriously difficult to count accurately in Wanstead Park and I would not be surprised if there were already more there. A pleasant surprise was the presence of five Wigeon, two on the Basin and three on Heronry. This is a scarce duck away from the coast or the Thames. Odd birds sometimes turn up in very cold weather, so to have such a number in mild conditions is something of an event. Many of our Pochard seem to have moved on, and my suspicious is that the September peak (74 birds) involved local breeders rather than an influx from continental Europe. Numbers of Mallard and Tufted Duck haven’t yet started to increase noticeably. Other birds of interest included five Great Crested Grebes on the Basin, single Kingfishers seen on Heronry and near the Cedar of Lebanon, a good count of six Grey Herons, two Grey Wagtails and a Little Egret.
The figures: Wanstead Park: 15 Mute Swan, 31 Canada Goose, 2 Greylag Goose, 78 Mallard, 5 Wigeon, 7 Common Teal, 10 Shoveler, 33 Tufted Duck, 21 Pochard, 4 Cormorant, 6 Grey Heron, 1 Little Egret, 136 Coot, 40 Moorhen, 5 Great Crested Grebe, 1 Little Grebe, 64 Black-headed Gull, 1 Herring Gull
Hollow Pond: 7 Mute Swan, 94 Canada Goose, 2 Greylag Goose, 2 Egyptian Goose, 30 Mallard, 3 Shoveler, 17 Pochard, 16 Tufted Duck, 1 Grey Heron, 2 Great Crested Grebe, 48 Coot, 10 Moorhen, 68 Black-headed Gull, 2 Herring Gull.
Thanks to David Giddings and Andrew Spencer for their able assistance to do the count, and to Nick Croft and Ralph Potter for additional records. We now have a regular counter at Hollow Pond, Whipps Cross: welcome to the team, Anne-Marie White!
Bio-Blitzing the Park – 5 October 2014
The day dawned frosty, but with hardly a cloud in the sky by 10am it was warm and sunny as people assembled in Wanstead Park for the Wren Group’s first bio-blitz. The Lakehouse moth-trap had already delivered nine species of moths, and the efforts of Bob, Dan, Debbie and Tim had produced a good selection of birds on Wanstead Flats, including a party of Skylarks that had deserted their breeding area and returned to their winter feeding quarters – on the other side of Centre Road! Other birds found on the Flats during the day included a Stonechat and Linnets, but there was no visible migration of note.
Back at The Temple, after a showing of four of the moth highlights – Black Rustic, Shuttle-shaped Dart, Pink-barred Sallow and Lunar Underwing – Derek took charge of the pond-dipping session in Perch Pond, while Gill, Cathy and Jackie led a group listing invertebrates, plants, lichens and fungi in Chalet Wood. David scoured the Park for birds, while Rose went off in search of anything of she could find. A large Signal Crayfish and several Perch ended up in pond-dippers’ nets and four species of dragonflies were seen over and around Perch and Heronry, including a very late Black-tailed Skimmer. Good numbers of Red Admiral butterflies, along with a few Large Whites and Speckled Woods – and a lovely, fresh Small Copper – were on the wing over The Plain. Cathy picked up a Buzzard soaring over The Glade and a few minutes later it drifted south over The Plain. Unusually these days, both Treecreeper and Nuthatch were recorded: Cathy heard the latter calling in Chalet Wood, while Dan saw a Treecreeper in Bush Wood.
A selection of interesting aquatic invertebrates was showcased at The Temple. These included an extraordinary squeaking water beetle, probably Acilius sulcatus, and a Great Water Boatman, Notonecta glauca. As the afternoon wore on, people were still trying to add new species but we called it a day at 3pm. With various people working on the identities of mystery bugs and lichens, we hope to have a comprehensive list in a few days’ time. My hunch is that we’ll top 150 species for the day.
Thanks to the City of London for letting us have use of a room at The Temple, and thanks to the 30 people who took part, particularly Cathy and Derek, who travelled all the way from Reading. Judging by the positive feedback, there will be more bio-blitzes to come!
Join our Bio-Blitz on 5th October!
Sunday 5th October
10:00 outside the tea hut in Wanstead Park (100 metres north of the Northumberland Avenue entrance)
On Sunday 5th October we will be conducting a bio-blitz in Wanstead Park. This is a fun activity, but with a serious aim, as we try to find as many species as we can – birds, insects, spiders, plants and anything else we can come across. Identification guides will be at hand and anything we get really stuck on we’ll photograph for later identification.
We hope to have a team searching in the leaf litter in Chalet Wood, another group identifying invertebrates on The Plain, and other people counting water birds on the Park’s lakes. If we have enough people we might also have a team working in the Old Sewage Works. Simultaneously, a group of birders will be logging visible migration on Wanstead Flats.
If the weather is fine the previous night a moth-trap will be run locally, and interesting moth species will be shown in The Temple. If the weather is poor we may have to change our plans.
To help us plan for the event, could anyone wishing to participate please contact Tim Harris (email: email@example.com or phone/text 07505 482328).
Pochard numbers hit new heights – 6 September 2014
Last winter, Wanstead Park attracted record numbers of Gadwall. This year it seems to have hit the jackpot with Pochard. In recent years, this duck has adopted a habit of arriving in early September – before the build-up of other winter wildfowl, with numbers then thinning as the autumn progresses. This year they started arriving in late August and have, this week, hit record numbers, with more than 60 on Heronry. Joining them this week have been single Red-crested Pochard and Wigeon.
Migrants in good numbers on Wanstead Flats – 31 August 2014
Wanstead Flats was at its very best for early autumn migrant birds on Sunday morning, 31st August, with a lovely selection of chats, warblers and flycatchers, and a few Swallows passing through. The good thing about the Flats is that the area holds birds … there is plenty of food and cover for them. Minimum counts this morning from the Wanstead Birders team included 10 Swallows flying through, a Tree Pipit, 10 Northern Wheatears, 11 Whinchats, 7 Common Redstarts and 14 Spotted Flycatchers. Plus plenty of Common Whitethroats, Blackcaps, Chiffchaffs and Willow Warblers. All in glorious sunshine!
Pics: Tim Harris
Surveying small mammals – 30 August 2014
On Saturday 30 August, Darren Tansley, Water for Wildlife Officer for the Essex Wildlife Trust, demonstrated survey methodology for small mammals in the Old Sewage Works. Darren gave 10 Wren Group members some fascinating insights into the behaviour of voles, mice and shrews, and explained best practice the setting of traps so that animals are not harmed. Darren and Tim Harris has set 30 traps the previous evening and 11 of these had been used during the night. We found four Wood Mice (2 males, 1 female and 1 that escaped before being sexed!) and a single Field Vole. Six other traps had been entered, though there was no animal within; this is suggestive of shrew activity, with both Common and Pygmy likely to be on-site. Each trap has an escape hole for shrews at the back, because these tiny insectivores need to feed regularly or they will die. Darren later demonstrated how checking the pellets of owls and other raptors can indicate what species of prey are on-site. Examination of dental patterns and skull shape indicates whether the bones in a pellet are those of a shrew, mouse or vole. Thanks are due to Darren for sharing his knowledge with us, and thanks also to the Riding Stables for letting us use of their gazebo for the pellet analysis.
Pics: Wood Mouse and pellet analysis, Tim Harris
A Walk in the Cemetery
Last Sunday saw a very well-attended walk in the City of London Cemetery in Aldersbrook Road. Run by Wren committee member Gill James the walk looked at some of the more unusual trees in the area with a little bit of history thrown in.
The cemetery was designed to be the ‘Cemetery in a Garden’ with a pleasant open aspect a world away from the doom and gloom of other conifer-ridden cemeteries. It was planted up with a majority of deciduous trees in order to give it a tranquil park-like aspect. Many people do not realise what a pleasant and expansive place this Cemetery is, with a wide variety of unusual and beautiful trees mainly planted in the nineteenth century, a large memorial garden full of roses, and some very fine Victorian buildings, all beautifully maintained and financed by the City of London.
The original design for the cemetery was the brainchild of William Haywood, who was active in the redevelopment of modern London. He was also the architect of the Holborn Viaduct scheme. There was a great need for more cemeteries to serve London at this time as the population had expanded rapidly since the beginning of the nineteenth century and the churchyards of the City were literally overflowing. It was not uncommon to find human remains scattered and bones gnawed by dogs. So Haywood was given the job of finding a suitable site for a new cemetery and he chose and purchased 200 acres of what was at that time Aldersbrook Farm. The purchase of this land, with its attendant grazing rights had an important knock-on effect for us, for it enabled the City of London at a later date to acquire Forest land, including Wanstead Park & Wanstead Flats, which would otherwise have been developed for housing.
A walk in the Cemetery is interesting in many different ways, not least to observe the variety and change of fashion in funeral monuments. Many people come to search out the graves of notable persons, such as Bobby Moore, Robert Hooke, and more recently Bob Crowe. But this really is a People’s Cemetery, meant to accommodate everyone including paupers and murderers. Some of the most impressive graves are the Churchyard Removal monuments, necessitated by the clearance of some of the ancient churchyards in the City and the reinterment of the remains of thousands of our forebears.
Many trees which were once rare and special and were collected from far-off spots such as India, China and America, are now familiar to us because they are commonly planted in our streets, parks and gardens. An example is the Purple-Leafed Plum, well-known to us for its pink blossom cheering our streets in spring, but which originated apparently by accident in the garden of the Shah of Persia before 1880. How are the mighty fallen!
The Cemetery is a good place to look for wildlife: the mature trees attract a variety of birds and many urban foxes find a home here. Some areas are left unmown to encourage wildflowers, and we saw many harebells, but there is always pressure to find more space for burials.
Why don’t you take a look ?
Dragons on the Wing
Whilst walking along the east end of Perch Pond on 7th August, I stopped to investigate both the plants along the pond’s bank, and to watch the various dragonflies and damselflies flying along there. There were several of the various ‘blue’ damselflies, a Brown Hawker, a female Emperor Dragonfly (egg-laying), but the only one I managed to photograph was a red darter. Closer examination showed it to be a Ruddy Darter, which is less abundant than the similar looking Common Darter. The most obvious distinctions are that the Ruddy Darter’s waisted abdomen is more of a blood-red colour, whilst the Common Darter’s is a slightly paler orange-red, and is not a waisted shape, ie it is more straight. Also the RD’s head is red, whilst the CD’s is brown; and the RD’s legs are black, whilst the CD’s are brown. There are a few more ID distinctions, but to see them you would either have to look more closely at the creature – perhaps via binoculars – to observe its different markings, or study any photographs which you have taken later, and check them with a field-guide.
Two days later I found another Ruddy Darter, this time on Shoulder of Mutton Pond. A Black-tailed Skimmer and an Emperor were both ‘patrolling’ there, and there were several of the ‘blue’ damselflies. Some of the blue damselflies looked decidedly shorter – and they turned out to be Small Red-eyed Damselflies, a fairly recent colonist in the UK.
Bat Night on Perch Pond
On 31 July 2014, a Thursday evening, the group met at the Tea Hut at 20:30 for a Bat Walk in Wanstead Park. This was a little early, even damselflies were still about and the birds going to roost, but it was felt best to meet while it was still light rather than have people stumbling about in the dark. At about 21:00, there being no activity on Heronry Pond, the group of 29, aged between <1 and 70+, walked over to the dam at Perch Pond, bat detectors at the ready. A few minutes later a signal was received in the 20-25Khz range and shortly thereafter a Noctule was sighted about 50m up over the trees bordering Perch Pond, flying in front of the clouds that were lit by the waxing crescent moon. At about 21:30 things really began with the arrival of at least two Daubenton’s skimming the surface of Perch Pond in the moonlight, followed by the arrival of at least four Soprano Pipistrelles. At around 22:00 the Common Pipistrelles arrived and the group settled down on the dam to watch and listen to the show until at 22:30 when it was decided to call it a night and the group returned to the Tea Hut and hence home.
A really interesting and enjoyable way to spend an evening. Not only because of the bats but also just being quiet in Wanstead Park as it grew dark, with the clouds reddened by the moon after the sun had set gradually fading into the gloom. Hard to believe that Canary Warf is less than five miles away.
Butterfly hunting at the Olympic Park
Over the last couple of years, I have focused more on looking at butterflies, so today I visited the Queen Elizabeth Olympic Park, to see what I could find there of these beautiful creatures. Conditions were butterfly-friendly, ie very sunny and hot, with lots of wildflowers still in bloom for them to visit for their fill of nectar. During my afternoon at the park, I noted 5 Meadow Browns, 20 Gatekeepers, 2 Peacocks, 1 Red Admiral, 14 unspecified ‘Whites’, and 200+ Common Blues – definitely the most frequent butterfly-ers of the day!
However, my ‘star butterfly spot of the day’ was a Clouded Yellow – my first time seeing this particular butterfly, and by the end of my visit, I had seen 11 in total. The only other yellow butterfly I had ever seen before was the Brimstone, but the Clouded Yellow is quite different – a deeper, ‘buttery’ gold kind of colour. The Brimstone is a much paler yellow. According to one of my butterfly guide books : “The Clouded Yellow is a well-known but unpredictable migrant to Britain, and occasionally arrives in huge numbers. However, most years only a few arrive from the Continent.” So, although not rare, it seems it is fairly uncommon to see. It certainly made my day to see it, or should I say, them!
Spreading the word, come rain or shine
In monsoon-like conditions, the Wren Group and Misty from tidyourflats set up a stall in Forest Gate first thing on Saturday (24 May). Surely the sun shines on the righteous because by 10:30 the sun was shining and more people were stopping to chat. We talked to people about a range of subjects, from litter-picking to the colonisation of Wanstead Flats by Green Hairstreak butterflies. We explained measures to protect the breeding Skylarks to dragonfly diversity in the local area. People were interested in the Nature Club for children and the survey work we carry out. Fifteen or so people expressed an interest in finding out more about Wren activities and several joined the Group. This is a good way to engage with local people and we’ll certainly be doing it again. Quite a few people also said they’d come on the next tidyourflats litter pick, which is on Sunday 8 June. Meet at 11:00 near the corner of Capel Road and Centre Road. There is a BBQ
Summer migrants return in force
For many people, myself included, the arrival of spring is definitively marked by the appearance of the first Northern Wheatear on Wanstead Flats. It may be cold – last year it was actually snowing! – but that matters not. This year, the magical date was 20 March. As Richard Hunt and I were walking through the brooms a small bird flew over from the direction of Long Wood, conveniently giving us a glimpse of its white rump. The bird was relocated a few minutes later by Jono Lethbridge and turned out to be a bright male. And it hadn’t travelled alone. Within half an hour one or two other males had been found.
Once March morphed into April, the pace of migration picked up. So far (up to 20 April), there have been about a dozen more Wheatears and a trickle of Swallows and House Martins. Particular highlights have been an Osprey, which was spotted as it flew over the Esso garage on Aldersbrook Road (no, really!) by Nick Croft. Two days later Bob Vaughan looked up in Bush Wood, to see a male Ring Ouzel looking down at him, a bird that Nick managed to photograph superbly. There have also been a couple of male Common Redstarts, a single fly-over Yellow Wagtail and a pulse of 40 Sand Martins that lingered over Alexandra Lake for a few minutes on 19 April before moving on. One of the most remarkable things has been the number of Lesser Whitethroats singing on the Flats and in the old sewage works. I can never remember this species arriving before Common Whitethroat, but it did this year, the first bird heard on 9 April, three days before Josh Selfe connected with the first Common Whitethroat . By 20 there were eight singing Lesser Whitethroats on the Flats (in the SSSI, Long Wood and near Alex). In fact, I don’t think the area could support any more, and time will tell whether all these birds stick around the breed or whether they find the competition too stiff. Let’s hope they stay and have a successful breeding season.
And what of our ground-nesting birds? There are probably nine Skylark territories and four or five Meadow Pipit territories on Wanstead Flats, both figures slightly up on last year. Good news!
Ring Ouzel by Nick Croft
Battle of the falcons
Any sighting of a Merlin is a cause for celebration but little did we expect the aerial show we witnessed on Sunday 23 March at Bradwell, on the Essex coast. As the Wren party walked south along the seawall, to the accompaniment of Corn Buntings, Meadow Pipits and Skylarks, Bob, one of the regulars at the bird observatory, picked up a female Merlin as it began a pursuit of a Skylark. The lark twisted and turned in front of us for more than a minute, the falcon attempting to follow each and every move. As Debbie pointed out, the falcon had a more cumbersome turning circle, but more rapid acceleration, so it was far from inevitable what the final outcome would be. Eventually the Skylark pitched down on the beach – and the Merlin dropped on it, grasping its victim in its talons and taking to the air again. Game over, I thought, but how wrong I was. No sooner had the Merlin claimed its prize than a Carrion Crow and a male Peregrine appeared as if from nowhere and gave chase. The crow quickly gave up, but the larger falcon was not prepared to let this free lunch go. For a couple of minutes the two falcons tried to outmanoeuvre each other. Nick Croft did very well to get a photo of this high-speed action. The Peregrine eventually bullied the smaller falcon into dropping its catch – and then dived to catch it in mid-air. We then watched as the Peregrine ate the unfortunate lark on the beach.
There were other highlights, too. We saw six species of raptors, including male and female Marsh Harriers. At least 10 Corn Buntings included several singing birds. Impressive numbers of waders took to the air from time to time as they relocated before the incoming tide. These included a twisting, wheeling flock of over 1,000 Knot, their bodies sparkling white as the sun caught them. At one stage we watched Dunlin, Grey Plover, Knot and a Sanderling lined up side-by-side on an abandoned barge.
Even the skies were dramatic, with a series of hail squalls passing to the north and south of us – well, apart from the one that came right overhead and deposited hailstones in our tea! Thanks are due to Bob Pease from the observatory and Steven Swaby – former Wren newsletter editor – for their local knowledge. And to the Group members whose company made the day so enjoyable.
Merlin and Peregrine aerial tussle, and Corn Buntings by Nick Croft
Skylark and dogs can mix!
On Saturday 15 March 19 people – and several dogs – took a closer look at the area of Wanstead Flats where Skylarks and Meadow Pipits build their nests and raise their young every year. Epping Forest keeper Thibaud Madelin and the Wren Group’s Tim Harris walked slowly along the main paths that dissect the area between Centre Road and the football pitches to the east. We stopped frequently to watch song-flighting larks and displaying pipits. Various aspects of the birds’ life-histories were discussed and, thankfully, when the sun came out they put on a good show. Early indications are that there could be at least as many territories as last summer but any number of things – not least poor weather and disturbance – could still spoil things.
The main message that Tim and Thibaud got across was that responsible dog care, which means sticking to the main paths and keeping dogs on the leash in the area of long grass east of Centre Road, can make a difference when it comes to these ground-nesting birds successfully raising young. If we lose the Skylarks and Meadow Pipits from the Flats we’ll all be the poorer. The City of London Corporation has assisted this effort with the provision of posts around the site – and in the next week there will be information signs as well.
Photo: Kathy Hartnett
The Jolly Waders
On Sunday 2 March members of the Wren Group practical work team donned waders and life-jackets to clear areas of Floating Pennywort (Hydrocotyle ranunculoides) from the western end of Perch Pond. This aquatic plant, which grows on the surface of the water, is actually quite attractive, so why bother? Well, it is not a native species but adapts very well to conditions in the UK. It is capable of growing up to 15 metres from the side of a lake in a single growing season(that’s an astonishing 20cm per day) and up to 50cm thick. Smothering the surface of a water body, that inevitably means the ecology of the lake, pond or ditch is dramatically altered. Other plants will be crowded out, surface-feeding birds are denied a water surface to dabble in, and invertebrates in the water beneath are denied light.
The plant is a native of North America but, being popular with the aquatic nursery industry, has colonised many other parts of the world, including South America and much of southern Europe. Although warnings about the risk of colonisation were aparently voiced as long ago as 1936, it first really began to spread in the UK after being sold for garden ponds in the 1980s.
Floating Pennywort is not an easy plant to remove. Its fine roots grow from nodes and unless these are picked from the water they will simply re-grow. This is an example of good old-fashioned hand-removal being more effective, certainly in small areas of infestation, than mechanical methods, which can simply spread the plant to other areas.
Contractors brought in by the City of London Corporation had cleared some large areas of the plant in late January, but we were able to tackle some of the smaller clumps in the area near the tea hut. We will now be on the lookout to see where it re-establishes itself, since complete eradication is well nigh impossible. Having said that, work carried out to remove it from Heronry Lake a few years ago does appear to have been a complete success.
Pics: Kathy Hartnett
Save our Skylarks!
The Wren Group, in conjunction with the City of London, has produced a new leaflet explaining the key role that dog-walkers can play in conserving our valuable breeding population of Skylarks and Meadow Pipits. Wanstead Flats has the only significant populations of these ground-nesting birds within a seven-mile radius of the centre of London, but the numbers are becoming alarmingly small. Everyone agrees it is important that we do everything in our power to keep these songsters in our manor. Disturbance during the breeding season, between the beginning of March and August, could reduce the number of young our ground-nesting birds manage to raise. Since the life expectancy of a Skylark is just two years on average, our population could disappear if breeding productivity is low. Dog-walkers are sometimes unaware that when Rover or Scruffy charges through the areas of long grass to the east of Centre Road, or just south of Alexandra Lake, he or she could be inadvertently disturbing a female Skylark on the nest or a brood of Meadow Pipit chicks. For this reason, dog-walkers are being asked to keep their dogs on the leash and on the paths running through the signed long-grass area during the breeding season.
A group of Skylark-friendly dog-walkers are handing out the leaflets to explain the campaign. In addition, on Saturdays 1 March, 15 March and 29 March there will be a walkover of the area where the Skylarks nest to show dog-walkers what they look and sound like. Forest keeper Thibaud Madelin and members of the Wren Group will lead the walks. Meet at the Centre Road car park at 10:00. The walks will last for about an hour.
If you would like some leaflets, please text Tim on 07505 48232807505 482328
Photos: responsible dog-walker Nayna with her dog Casper (T Harris); Skylark (J Lethbridge)
Looking Good in Bush Wood
So often ignored, Bush Wood really does deserve more attention. Providing a green link between the north-western extremity of Wanstead Flats and Wanstead Park, its mix of sweet chestnuts, oaks, hornbeams and stands of holly combine to form a kind of ‘magic forest’ sandwiched between Bushwood (the road) and Belgrave Road. Recent habitat management work carried out by the BARA practical work team (under the guidance of forest keeper Thibaud Madelin) has – among other things – removed invasive saplings and bramble scrub from the kidney-shaped pond. The pond already looks better, and with the recent persistent rain actually looks quite like a pond! It should certainly launch plenty of amphibians and damselflies into the world this spring. The first week of the new year witnessed plenty of bird activity in the wood, with a Mistle Thrush, Song Thrushes and Stock Doves particularly vocal. Great Spotted Woodpeckers have been drumming and I saw a pair of Green Woodpeckers displaying to each other. This is a sight worth seeing, with the male and female facing each other and swaying their heads from side to side. A Woodcock was disturbed by runners on New Year’s Day and other woodland birds include a usually elusive Firecrest (maybe there’s more than one?) in the holly, at least two Nuthatches and a couple of Treecreepers. The last two species were once regular breeders in Wanstead Park but sightings have been few and far between in recent years, while breeding has not been confirmed for many years. We’ll be keeping our eyes on these birds, hoping that they re-establish themselves as residents.
Why not pay the wood a visit? It can easily be accessed on foot from Bush Road, an alleyway from Belgrave Road, Bushwood and the playing field between Harrow Road and Lakehouse Road. One word of warning: wear boots because it is muddy at the moment.
Nuthatch and Treecreeper by Nick Croft
Wanstead Gadwall enter the record books
On Saturday 7 December a count of all Wanstead Park’s lakes produced a combined total of 307 Gadwall, a new record for the site. This comes just 10 months after the record was last broken, on the February WeBS count when Wren Group counters noted 258. With both Nick Croft and Dan Henessey reporting 200-plus of this subtly beautiful dabbling duck on the Park’s lakes during early December, it seemed right to cover all the lakes. About 150 were on Heronry, with small numbers on Perch, the Ornamental Waters and The Basin. Up to 1,700 pairs of Gadwall breed in the UK, but the winter population (October to March) swells to 25,000 as continental birds migrate to this country to avoid the freeze further north and east. As recently as 2009 the December total in the Park was only 111, so something is happening to encourage more of these ducks to visit us. They seem to have taken a liking to those parts of our lakes with overhanging vegetation, presumably because this offers them added protection. Favoured areas include the south side of Heronry Lake, the west end of Perch Pond, around the islands in the Ornamental Waters and around the fringes of The Basin. Our local wintering birds are quite easily spooked, usually swimming away – though rarely flying – if approached. What is gratifying to know is that we have more than 1 percent of the nation’s wintering Gadwall. This makes Wanstead Park a site of national importance for the species!
Preparing Chalet Wood
Beneath a canopy of brown, orange and even mauve leaves, the Wren Group practical work team finished the bramble clearance in Chalet Wood, in preparation for next spring’s bluebell display. This annual ritual ensures that visitors can enjoy the best possible show of these ever-popular flowers. While we were at work someone presented organiser Peter Williams with a Hedgehog she had found in an exposed position on a track, and Peter duly found a well-brambled corner of the wood in which to place it. This was the last practical work Sunday of the year, but we will reconvene on Sunday 5 January 2014, probably to clear scrub on the old sewage works site. Also planned for early 2014 is a session to clear invasive pennywort in Perch Pond. Watch out for details! Sharon Payne
The Annual Fungus Foray – 20th October 2013
On 20th October the Wren Group Fungus Foray in Bush Wood was led – as is traditional – by Tricia Moxey. Fortunately the timing was impeccable and the walk took place between two bands of heavy rain, meaning that although the forest was appropriately damp to be looking for fungi the people were not and the occasional shafts of sunlight made the forest a beautiful place to be on a Sunday morning. As always when Tricia leads a walk it was both informative and entertaining for the 25 people (and one dog) who attended. There were, however, distinctly fewer fungi than on the same walk, in the same area at about the same time last year. For example, where last year there was a carpet of Brown Deceivers this year there were only a few and where, under some trees, there had been a large number of Cloudy Agaric, this year there were none. In part this was because the grass had not been cut and was therefore long and hence effective in hiding fungi, but otherwise the reason is unclear. However, still they ranged from the very small Eyelash fungus to a large bracket fungus. There were also Brown Deceivers and Funnelcaps as well as a number of others that Tricia identified. Altogether, it made a most enjoyable walk. David Giddings Bottom picture-Fairy bonnets by David Giddings , top picture – Candlesnuff fungus by David Giddings
Practical work team make a splash
October 6th came as a gloriously bright and unseasonably warm sunny Sunday, the perfect day to be out and about in Wanstead Park. For nine Wren Group members it proved a particularly fun morning, boating across the Ornamentals to Lincoln Island and removing brambles and the like that threatened flowers that grow there, especially the daffodils. Planted some years ago, the daffodils, though not wild, are a joyous and unexpected herald of spring. As Edmund Burke said “all that is necessary for evil to triumph is that good men do nothing”. Though I wouldn’t call brambles evil, keeping them under control is necessary to prevent them destroying the habitat of other species. Having the boat also provided the opportunity to remove some branches that had fallen into the water and which add to its silting up. Practical work helps maintain an accessible and interesting Park with a variety of species and habitats. But it also brings personal rewards – fresh air, exercise, companionship and a sense of achievement. And, with nature all around, there is always something new to learn, see and enjoy. Last Sunday this included many Common Frogs (Rana temporaria), Common Toad (Bufo bufo) and Smooth Newt (Lissotriton vulgaris) which have made the island their home. If you come along to a practical work session be assured you can choose to make whatever contributions you wish. As a non-swimmer, I stayed on the bank, explained the group to passers by and took some pictures. Jackie Morrison
Bats in the Park
“I can hear one over there,” nine-year-old Jacob told me, pointing to the north side of Perch Pond. He meant a bat, but I could hear nothing. Moments later the bat detector I was holding began to emit the characteristic “chip-chop” rhythm of an echolocating Noctule, probably the same individual that Jacob had heard. Proof, if any was needed, that young ears are able to hear higher-frequency sounds than adults. The Noctule actually flew in front of us, over the pond, which was still conveniently reflecting the brightness of the half-lit western sky. The high-pitched ‘shouts’ it was emitting operate as a kind of radar, with the reflected sound indicating the presence of food – moths and other flying insects. In fact, for half an hour our group of 27 listened and watched in amazement as bat after bat flew over our heads, around the trees of The Dell, and over the water – all the time giving their own distinctive echolocation calls, which were translated to frequencies audible to human ears (even grown-ups!) by the detectors. The vast majority were Common and Soprano Pipistrelles, but we did have a couple of Daubenton’s Bats and another Noctule. At times, the sound of our battery of bat detectors was cacophonous. We spent some time by the Cedar of Lebanon, in the hope of getting some views of Daubenton’s hunting over the Ornamental Water, but with no luck. Then, returning to our starting point at the tea hut, we were treated to more swooping, gliding and careering pipistrelles. Since the demand for places on the 15 August walk had been so great, another was organised for a fortnight later, and this time nine participants were able to enjoy a repeat performance. There was other batty activity in Wanstead Park during August, too, namely the Waterways Survey conducted for the Bat Conservation Trust to enumerate Daubenton’s Bats along the River Roding. Myself and Sharon Payne conducted two nighttime surveys along a stretch of the river and recorded a good number of ‘passes’ of Myotis bats (Myotis is the genus to which Daubenton’s belongs, but it is not its only member!). Getting views of the bats skimming the water surface (a requirement for clinching their ID) proved very frustrating since only short stretches of river can be seen at any one place. With the exception of one obliging individual, the bats we kept picking up could have been Natterer’s or Whiskered, though my money would still be on Daubenton’s. One surprise on our second transect was picking up the very distinctive echolocation ‘shouts’ of a Serotine, the first of this large bat species I have encountered locally. Thanks to Mark Harris and Richard Oakman for their assistance on the 15 August walk. If you’d like to find out more about the UK’s bats, take a look at the website of the Bat Conservation Trust: ttp://www.bats.org.uk/ Tim Harris Photo: Discussing the evening’s plan of action, by Anita McCullough
Deer and fritillaries in Hatfield Forest
Although Hatfield Forest is only a runway’s length from Stanstead Airport, that should deter no-one from visiting. I found myself enchanted by this ancient landscape almost as soon as I’d passed through its gates. The forest is now owned and managed by the National Trust and I get the impression that they do a very good job. The pattern of woodland blocks separated by areas of grazing land with trees was created by people in Norman times – probably even earlier – and has been maintained as such ever since. Originally it provided good hunting, grazing land and wood from coppiced trees. Today it provides enjoyment for thousands of people every year. On one of the hottest days of late July a small party of Wren Group members visited to see for themselves. Ably led by Andrew Spencer, who knows the location very well, we first investigated the newly restored wet grassland around The Lake, along with some of the wooded areas. What struck me was the large number of butterflies, especially Ringlets, not a species I see that often. I estimate that we saw more than 150 during our visit. After a lunch break at the excellent café Andrew took us along several glades running through tracts of forest. Very noticeable were Silver-washed Fritillaries, with probably at least a dozen seen during the afternoon. On several occasions quiet approach work rewarded us with views of grazing Fallow Deer, including some fawns. And near a small wetland called Old Woman’s Weaver we watched for several minutes as a male Broad-bodied Chaser defended its territory – not much more than an oversized puddle! – from all-comers, including skippers a fraction of its size. Apart from a good selection of invertebrates and the aforementioned deer, not surprisingly Hatfield Forest is also a great place to practise plant and tree identification. We puzzled over one particular Hornbeam – usually a very easy tree to identify – for several minutes before concluding that was what it was! Did everyone enjoy the trip? Emphatically, yes. So much so, that we will be organising a return visit for those who missed out first time around. Tim Harris Male Broad-bodied Chaser by David Giddings
Awayday to Wat Tyler Country Park
For the second in an occasional series of Wren Group ‘awayday’ trips, fourteen WG members visited RSPB Vange Marsh and the Wat Tyler Country Park, both nera Pitsea in Essex, on 16 June. According to the RSPB, “Vange Marsh is a mosaic of wetland habitats. Fresh and seawater lagoons attract breeding Avocets, Common Terns, Little Ringed Plovers, Lapwings and Reed Buntings. In winter, Wigeons, Teals and Shovelers visit the site and Bearded Tits thrive in reedbeds. Scarce Emerald Damselflies buzz around the reserve in summer. The site has a population of Adders, and Barn Owls can be spotted hunting over the marshes.” So it seemed as if there were good prospects of seeing some wildlife which we don’t usually see in our own patch. On leaving Pitsea rail station we crossed the road immediately opposite, and walked past a small industrial area before reaching Vange Marsh. Alongside the industrial area was a small wild area, where we saw several Common Blue butterflies flitting around. We walked onto the Marsh itself and saw and heard Reed Warblers and Reed Buntings in – not surprisingly! – the reeds around us, and also heard a Cetti’s and Sedge Warblers. We finally reached a bird ‘blind’ overlooking one of the lagoons, where we vied for position to watch the various birds on the lagoon. These included elegant Avocets and Lapwings, a single Greenshank and Oystercatchers, whilst Swifts and House Martins soared overhead. Leaving the Marsh, we spotted a Greenfinch family in some trees, and stopped to watch the parents feeding their hungry offspring. Retracing our footsteps to the road opposite the station, we walked south a few minutes’ walk to Wat Tyler Country Park. This park covers an area of 125 acres with a variety of habitats, hosting a rich diversity of species. The site has been designated a Site of Special Scientific Interest. Basildon District Council took control of the park in 1969, naming it after Wat Tyler, who was one of the leaders of the Peasant’s Revolt in 1381, as the Revolt was begun by the men of nearby Fobbing. There is much history associated with the site, but on this day we concentrated on the natural history. Two new buildings have been added to the site in recent years: The Wat Tyler Centre opened in July 2009, and includes a cafe and rooms available for hire for business and private events; and the Green Centre opened in 2011, where visitors can learn more about environmental matters. The RSPB also have a small visitor centre on site, and the Essex Field Club is based in the Green Centre. We entered a hide and watched a variety of birds on and around the water through our binoculars, and had some even closer views courtesy of Tim’s ‘scope. After this we decided it was time for some refreshments, so we made a beeline to the cafe in the Wat Tyler Centre, before later heading on out into the general area of the park. We walked along paths surrounded either side by hedgerows, and then came to a more open area which led to Vange Creek. The tide was out, so the little boats were moored on the mud. The mud looked like good habitat for any waders. We saw various gulls, more Oystercatchers, Common Terns and a Redshank, and even saw a Pied Wagtail scuttling about on one of the boats. One channel leading off Vange Creek led to a large abandoned boat, which was covered in vegetation. Back among the hedgerows a little later, Paul Ferris drew our attention to a high-pitched birdsong nearby. This very distinctive trill we were listening to was that of a Grasshopper Warbler – a fairly rare bird to hear/see. This bird’s trill can be sustained for several minutes without a break, and has been likened to the mechanical sound of an angler’s reel. So high pitched is the sound, that some humans cannot hear it. As we were leaving WTCP, we saw a Marsh Harrier on patrol in the skies, and Tim saw a Turtle Dove. I recorded 59 species of birds, five species of butterflies, seven other kinds of insects and 40 plant species on the trip. List is available to look at here. Kathy Hartnett &amp;amp;amp;nbsp; Photos: Common Blue butterfly and Avocets by Kathy Hartnett.
A Midsummer Evening’s Walk
For those of us who had ventured out on last year’s Midsummer Wildflower Walk, we walked, cycled or drove to the Riding Stables at the end of Empress Avenue with a certain degree of trepidation this time. Because although we had seen some interesting plants in 2012, we also got wet. Very wet. However, this year the botanical gods smiled on us and – despite a weather forecast to the contrary – the evening stayed pleasantly warm and dry. &amp;amp;amp;nbsp; Tricia Moxey is a very safe pair of hands when it comes to finding and identifying plants. But, more than that, she has a fascinating story to tell about each one. Accompanied by the fluty notes of a Blackcap we first looked at the beautiful bright blue flowers of a patch of Green Alkanet, just yards from the entrance to the stables. Tricia explained how dyes were extracted from the tap-root of these plants, “alkanet” apparently being derived from the Arabic word for henna, al-hinna. And, silly me, I had thought these were Forget-me-Nots! &amp;amp;amp;nbsp; Venturing into the old sewage works we stopped in turn to look at the small yellow flowers of Black Mustard; to discuss the enormous variety of invertebrates dependent on Brambles; and examine a fine patch of Ox-eye Daisies. Close by, examination of some Hemlock prompted a discussion on how similar this plant looks to harmless Cow Parsley. Of course, they are both umbellifers, but all parts of Hemlock are very toxic to people and animals, the toxicity remaining even after the plant has died. &amp;amp;amp;nbsp; A Cook’s tour of Red and White Clovers, Yarrow, Burdock, two very different shades of Dog Roses (pink and white) and Comfrey led us to the west bank of the River Roding. Since there hadn’t been much recent rain, the water level was very low. It was too late in the day to see any patrolling damselflies, but patches of Water Crowfoot in the gently flowing water made a pleasant sight. It was now8:30 and the birds’ evening chorus had built to its peak. Wrens, Blackbirds and Blackcaps all made a contribution but Song Thrushes dominated, this area being their local stronghold. &amp;amp;amp;nbsp; Turning around and walking towards where the sun had descended behind the trees, it was hard to believe that we were in East London. This could have been a heath in the New Forest (albeit without the Gorse and Heather). Absolutely beautiful! And there were still plants to see, including Woody Nightshade, Weld and Shiny Cranesbill. I’m sure I’m not the only one who is now more determined than ever to commit all these plants to memory. Tim Harris &amp;amp;amp;nbsp; Pictures by Jackie Morrison
Alive with flowers
The site of the Old Sewage Works (sometimes called the ‘exchange lands’) is now awash with yellows, pinks, mauves and blues. It has become a wonderful wildflower meadow and deserves a visit if it is not already on your walking schedule. This is also a good place to see Peacock, Small White and Orange-tip butterflies at the moment. Along the river you can watch Banded Demoiselles and other other damselflies. And if you are lucky you might catch a glimpse of a Grass Snake. The Old Sewage Works lies between the allotments at the eastern end of Empress Avenue and the River Roding. &amp;amp;amp;nbsp; Why not join Tricia Moxey as she leads an evening walk around the area to look at its wildflowers? Date: Thursday 20 June. Time: 7.30pm. Place: outside the entrance to the riding stables in Empress Avenue.
Kite surprise on Waterworks trip
On Sunday 12 May about a dozen Wren Group members visited Waterworks Nature Reserve and Middlesex Filter Beds, just off the Lea Bridge Road. Martha Smith (aged 9) takes up the story: “On the walk, we saw many different species of butterflies, birds and even a Fox or two. Our journey began when we looked in the bushes for butterflies, but while doing so we heard Wrens singing their merry tune in the distance. Unfortunately, we didn’t manage to see a Wren although we tried. After searching the bushes for a few minutes we surprisingly came across a Small White butterfly and a Green-veined White butterfly! Afterwards we discovered a few kinds of plants and I found out which kind of nettles sting and which don’t. We also came across some male Blackbirds squabbling over their territory. To our surprise, we found another wonderful species of butterfly, a Speckled Wood. Next we came to the hides, so first we looked out of a hide window and immediately spotted a male and female Mute Swan. If we were patient and waited long enough we would be able to see the nesting female’s eggs when she stood up; we finally spotted four eggs when she started preening. Slowly but surely we made our way round every single one of the hide windows. Round the outside of one of the enclosures we saw a Fox prowling round and I assumed he/she was after the swan or her eggs. While looking, we also found some more Small Whites flying around quite sharply. On the way out of the hides one of the group spotted a Red Kite flying high above and I got rather excited. As it got later, with the sun beating down relentlessly, we decided to scour the meadow for some more fascinating species of butterfly. First we saw an Orange Tip butterfly but after a while of finding nothing we had almost given up. Suddenly one of us shouted to the others that she had just found a Peacock and sent Jacob to inform the others of their spectacular discovery. Fortunately they arrived in time to get some shots of this flaming deep-red butterfly laying its eggs on nettles. Then one of the older members of the group heard the faint tap, tap, tapping of a far-off woodpecker and while most of the group went to get a closer look, I had to make my journey home.” Birds seen or heard: Mute Swan (2), Canada Goose, Mallard, Gadwall, Pochard (12), Tufted Duck, Little Grebe (2), Cormorant, Grey Heron, Red Kite (1), Hobby (1), Moorhen, Coot, Lesser Black-backed Gull, Feral Rock Dove, Woodpigeon, Common Swift, Green Woodpecker (2), Sand Martin (1), Swallow (3), Grey Wagtail (2), Wren, Dunnock, Robin, Blackbird, Song Thrush, Reed Warbler (10+), Blackcap, Common Whitethroat, Chiffchaff (1), Willow Warbler (1), Blue Tit, Great Tit, Long-tailed Tit, Jay, Magpie, Carrion Crow, Starling, Chaffinch, Greenfinch, Goldfinch. &amp;amp;amp;nbsp; Butterflies seen: Small White, Green-veined White, Orange-tip, Holly Blue, Brimstone, Peacock, Speckled Wood, Small Tortoiseshell. &amp;amp;amp;nbsp; Picture credits: Anita McCullough
The bluebells are out in Chalet Wood in
The bluebells are out in Chalet Wood in Wanstead Park! They are expected to be at their peak during next week. Come and enjoy!
An explosion of spring
&amp;amp;amp;nbsp; Nature always finds new ways to surprise. On Sunday 14th April winter finally relinquished is icy grasp and it was great to be walking around without a thick coat for the first time in months. A group of Wren group members gathered in warm sunshine in Wanstead Park to conduct the last waterbird count of the 2012/13 winter season. Our first impression, looking out over Heronry lake, was how empty it was. Yes, there were lots of Coots on their stick-island nests. And yes, there were small groups of Tufted Ducks, the males resplendent in their black-and-white plumage, and loafing Mallards. But gone was winter’s flock of Pochard. And gone, too, were the record-breaking numbers of Gadwall that we’d grown so used to seeing. It did not promise to be a particularly dramatic count! &amp;amp;amp;nbsp; But first impressions can be wrong. David had already seen two Brimstone butterflies by the time he joined us, and as we were walking around the old sewage works an Orange Tip flew past. We weren’t able to get good views of this early-season species but were luckier with several Commas in the area cleared by the practical work team during the icy months. Andrew had had the foresight to bring a camera and managed to get some nice shots of one of this species nectaring on some brilliant yellow Coltsfoot. As we worked our way up the eastern side of the Ornamental Waters we saw several more Commas and the day’s butterfly variety was added to later with a Peacock near Shoulder of Mutton. &amp;amp;amp;nbsp; At the southern end of the Ornamentals a large mass of frog spawn got us all peering into the water. Sure enough there were several Common Frogs, some in amplexus, and at least two Common Toads. Then I heard a call of “Bat!” as Linda, Andrew and David saw what was probably a variety of pipistrelle flying through the trees. After an all-too-long winter in hibernation, bats are now desperately hungry and will emerge during the day to feast on any flying invertebrates. Not to be outdone, Pam saw a medium-sized fish, which she later identified as a young Perch. &amp;amp;amp;nbsp; By this time we had successfully worked our way through all the classes of vertebrate animals. (Earlier, two sunbathing Red-eared Terrapins were spied on a log at the western end of Perch pond. OK, they’re not native to the UK but they’ve been here a long time and I think they’re still of interest.) &amp;amp;amp;nbsp; Despite all these distractions our focus on waterbirds remained. Although we made no dramatic finds, we discovered that 16 Gadwall and seven Shoveler remained on the park’s ponds and lakes and that Little Grebes were paired up at both ends of Heronry and on Shoulder of Mutton. Also, that the Great Crested Grebes remained on the former lake. There was other bird interest, too. Three Swallows flew over during the course of the morning; we were able to watch a pair of Sparrowhawks displaying over Warren Wood; and a Common Buzzard, closely attended by Carrion Crows, drifted south over the Glade. &amp;amp;amp;nbsp; All in all, a great morning to be out and about. It’s amazing what a splash of warm sunshine can do. &amp;amp;amp;nbsp; Tim Harris Picture: Comma on Coltsfoot by Andrew Spencer STOP PRESS: 15 April: 27 Wheatear, 5 Common Redstart, 3 Whinchat, Ring Ouzel on Wanstead Flats.