Saturday, 15 June 2013

Bird List: 2007-2013

It is almost six years now since the Hilly Fields Bird Champion Project was launched by Lewisham Council. To provide some feedback, I submitted a report to the Lewisham Biodiversity Partnership in April which included a list of all bird species seen in the park since the project began. The report was discussed at the May meeting of the Partnership and was welcomed. A further initiative may derive from it which I will report on at a later date.

I will not rehash details of the report here as it can be read on the Lewisham Nature Conservation blog. However, I have reproduced the bird list below with the addition of a Lesser Black-backed Gull seen since the report was submitted. The birds are classified under Everyday which means you should see or hear them every time you visit the park; Regular which means they should be seen or heard often (in their season), perhaps at least once a week; Occasional which I think is self-explanatory; Rare which means rare to the area and to Inner London as a whole. Indeed, if a Cuckoo or Short-eared Owl were to stay on Hilly Fields for a while, it would almost certainly attract a few twitchers!

Although I suggest in the report that bird population levels in the park have been stable since 2007, Keith has pointed out that local House Sparrow numbers have declined during this period. As the original bird champion, he recorded as many as 50 during 2007-8, whilst 10 is the highest number seen nowadays. The sparrows are usually in and around the Cliffview hedge (see the site map) and the answer may lie in the fact that roof repair work carried out in some adjoining Cliffview Road houses not long ago may have disturbed their nests. It is likely therefore that some of the sparrows have simply relocated elsewhere in the neighbourhood which is not short of this once ubiquitous bird. I've noticed a thriving population recently, for example, along the Ravensbourne at Cornmill Gardens.

A word about the Chiffchaff which is number 26 on the list. This is a warbler which usually arrives on our shores in late March and April. It is not by any means rare or even 'occasional' at other local sites. It can be heard regularly at Ladywell Fields and Brookmill Park, for example. At Hilly Fields, however, I've heard it only three times this spring and have suggested that it simply rests here before moving on elsewhere. On 2 June, however, I heard it singing from the top of an Eastern Rd tree for about 15-20 minutes as if it were seeking out a partner.


Could it be breeding in the park? The photo above was taken at full zoom against the sky and is not very clear, but this earlier post includes a clip of the Chiffchaff's short simple song which begins nine seconds into the video. It is perhaps the easiest of the warblers to identify. Please let us know if you hear it.

So here is the bird list - 41 different species identified since 2007. Onwards to the half century!

Hilly Fields Bird List: 2007-2013

Everyday

1. Blackbird  (resident)                

2.   Black-headed Gull  (resident - winter months)
3.   Blue Tit  (resident)
4.   Carrion Crow  (numbers vary but thought to be 4 residents)
5.   Common Gull  (resident - winter months)
6.   Goldfinch  (daily visitors in a flock of up to 20 birds on occasion)
7.   Great Tit (resident)
8.   House Sparrow  (resident)
9.   Magpie (numbers vary but thought to be 2/3 residents)
10.  Ring-necked Parakeet  (daily visitors in small numbers) 
11. Robin (resident)
12. Wood Pigeon  (resident)
13. Wren  (resident)

Regular

14. Blackcap  (summer and winter migrants)

15. Chaffinch  (probably resident)
16. Common Swift  (seen overhead in summer months
17. Dunnock  (probably resident
18. Feral Pigeon (small no, easily outnumbered by wood pigeons)
19. Great Spotted Woodpecker  (resident pair)
20. Greenfinch  (probably resident)
21. Jay  (regular pair - possibly resident)
22. Long-tailed Tit  (unsure whether residents)
23. Mistle Thrush  (regular pair - probably residents)
24. Pied Wagtail  (seen on bowling green and on stone pathways)
25. Starling  (as many as 80 seen in winter months; disappeared during 2012 summer months)

Occasional

26. Chiffchaff  (heard since 2011 at spring and autumn migration times only)

27. Coal Tit (very occasional)
28. Collared Dove  (very occasional)
29. Fieldfare  (occasional in winter
30. Goldcrest  (possibly visitors from nearby Brockley/Ladywell cemeteries)
31. Green Woodpecker  (also possibly visitors from above)
32. House Martin  (not recorded since 2008)
33. Kestrel  (very occasional)
34. Nuthatch  (very occasional)
35. Redwing   (seen more in winter/early spring 2013
36. Sparrowhawk  (possibly the birds that are known to have bred in Brockley Cemetery)
37. Stock Dove  (very occasional)
38. Tawny Owl  (heard by Cliffview Road residents in  autumn/winter 2012/13, not seen)
39.   Lesser Black-backed Gull (very occasional)

Rare

40. Cuckoo  (heard once in May 2011)

41. Short-eared Owl  (seen overhead 13/10/12 being mobbed by crows. Probably same bird recorded over London Wetland Centre earlier that day



Tuesday, 28 May 2013

A Tit Without A Tail

I had seen it twice in the third week of May. Up in the hawthorns on Eastern Road - a very small bird looking from below like a ball of pale fluff, always in the company of a Long-tailed Tit and moving rapidly between branches and trees. It kept making a high "tseeping" sound and I had thought: Goldcrest? Very recent fledgling of some sort? At times, it hovered between branches fluttering its wings as if to keep airborne, but usually it had no problem flying fast or in a reasonably straight line.Then, on 22 May while doing the monthly bird survey with Sue, we both saw it and  reached the conclusion that what we were looking at - from the visible head markings and general behaviour - could only be a Long-tailed Tit without a tail.

Back home, a quick surf through Google proved that tail-less tits, though not common, are seen from time to time. The lack of a tail is usually the result of an accident or a predator attack. It doesn't seem to affect their ability to forage and frolic (like a "manic pom-pom" is how one tail-less tit is described) and the tail normally grows back after about four weeks. I haven't been able to photograph the Eastern Rd pom-pom, but here's a pic from the web::

From Asigaru's Nature Diary
Long-tailed Tits are nesting in the densest bramble scrub you could find on Eastern Rd where their chicks should be safe until fledged. This is good news as they are one of five key species among Hilly Fields regulars which re-assure me that the park is still providing a good diverse habitat. The other four are: Blackcap, Great Spotted Woodpecker, Jay and Mistle Thrush. Yes, I know you could add the "at risk" House Sparrow, the Dunnock, the Greenfinch (not seen often and in decline nationally), but I'll stick with my "big five" for now.

Sue and I saw four of those five key species during our May survey, the only absentee being the Mistle Thrush. There were plenty of birds singing, but the foliage is back on the trees and seeing the smaller birds is getting harder again. Our list for that day (of birds seen or heard) is as follows: Blackbird (6), Blackcap (1), Blue Tit (4), Crow (3), Chaffinch (1), Chiffchaff (1), Collared Dove (2 - an unusual sighting on Hilly Fields), Dunnock (1 - singing in the Vicars Hill border), Feral Pigeon, Goldfinch (3+), Great Spotted Woodpecker (1), Great Tit (4), House Sparrow (2), Jay (1), Long-tailed Tit (3), Magpie (2), Ring-necked Parakeet (1), Robin (5), Starling (6), Swift (2 - soaring overhead), Woodpigeon (3) and Wren (5+).  22 species - one of our best results. The Chiffchaff is only the second we've heard on Hilly Fields since their arrival in the UK in late March/April.  And it occurred to me that the Jay would be able to hide itself better in thick woodland or scrub without that bright blue wing patch which gave it away this time. Here's a photo of one I took a few days earlier on the open edge of Hilly Fields wood:


Around the park in general, spring has sprung with a vengeance after the extended midwinter cold. All of the trees are in leaf, the horse chestnuts have their creamy-white flowers, the May blossom has appeared on the hawthorns, there are daisies and bulbous buttercups and even the occasional bee or butterfly. And one particular plant - as you can't fail to have noticed if you've been there recently - is romping away:


Yes, you can hardly see the trees for the cow parsley.


Monday, 6 May 2013

April Bird Survey: Springtime Song

Sue and I did our monthly bird survey on 30th April - a warm sunny morning with just a slight chill here and there to remind us of the cold winter not long left behind. Most of the trees were in leaf, the cow parsley was beginning to flower and the birds were in full springtime song. Blackbirds, Robins, Wrens, Great Tits and Chaffinches could be heard abundantly around the park and we also saw and heard at least three male Blackcaps. There were brief glimpses of the Jay, Great Spotted Woodpecker and Goldcrest and we spent some time trying to get a clear view of a silent warbler that was flitting about high in the branches of a leafy tree. In the end, we concluded that it was probably a Chiffchaff. The only regulars that were missing were Goldfinches and Mistle Thrushes though they have both been seen and heard since.

Blackcaps and Chiffchaffs are the only warblers we seem to get on Hilly Fields and only the Blackcap stays around for the summer. Those we saw would be spring migrants, recent arrivals and will already be in the throes of nest building and breeding. The wintering Blackcaps will by now have returned to central Europe. Blackcaps are just a tiny bit smaller than House Sparrows and it is only the male that has a black cap; the female's being a sweet chestnut brown. Often, though, the easiest way to spot them in the bush is by the white downy breast. You will hear them singing at this time of year though not as often as the songbirds I've mentioned above. Their song is very attractive, starting in a scratchy stuttering manner and becoming more "fluting" towards the end. Here's an example:


Our final tally was 19 species: 8 Blackbirds, 3+ Blackcaps, 3+ Blue Tits, Chaffinch, 5 Feral Pigeons, Great Spotted Woodpecker, only 1 House Sparrow (unusual), 2 Long-tailed Tits, Ring-necked Parakeet, 4 Starlings, 3+ Wrens, 2+ Carrion Crows, Chiffchaff, Goldcrest, 4+ Great Tits, Jay, Magpie, 6+ Robins, 3+ Woodpigeons. This is one of the few months in which the Feral (or 'London') Pigeon has outnumbered the plumper Wood Pigeon (the one with the white collar). The House Sparrows must have been out and about. We have now recorded 41 different bird species at Hilly Fields since the Bird Champion Project began in 2007 and I will publish the full list in our next post or you can read our report on the Lewisham Nature Conservation website here. The most recent new sighting was a Lesser Black-backed Gull seen here in splendid isolation near the cricket pitch on 20th April:



Friday, 12 April 2013

Turning Point

I don't want to sound wildly optimistic but I think we may have reached a turning point. With temperatures soaring into double figures (19°C promised on Sunday), things are changing on Hilly Fields and no doubt elsewhere. On Wednesday morning, at least a dozen Redwings (with a few Fieldfares mixed in) were twittering excitedly in the West Field trees alongside Montague Avenue. It sounded as if they knew that the time was approaching for their delayed (by bad weather) flight back to Scandinavia. Sure enough, when I led a group of dawn chorus walkers over there the following morning at 06.30 hrs, the trees were silent.
Redwing in one of the West Field trees - red under the wing and a white stripe over the eye
The Black-headed Gulls departed sometime over the weekend. Today, Friday, I noticed one or two Common Gulls overhead but there was no sign of the usual flock on the grass, so they too have presumably gone forth to multiply. I also saw this morning, however, the two resident Mistle Thrushes singing for the first time this year and heard a Chiffchaff singing in one of the Eastern Road hawthorns. The Chiffchaff is a spring migrant which flies to the UK each year from the Med and West Africa - an olive brown warbler about the size of a Blue Tit. They have been arriving more slowly than usual, presumably because of the weather and there have been reports of them flopping in exhaustion on reaching the south coast beaches. But one at least has made it this far and they've also been heard in other nearby locations. The Chiffchaff is not always easy to spot, but its song is very distinctive and easily remembered.


Elsewhere, nest building is going on apace. A Crow's nest can be seen high in one of the London Plane trees on the northern border of the bowling green and the resident Magpies are nesting at the top of one of the Eastern Road hawthorns. A little further down Eastern Road just past the green gates, Long-tailed Tits have built a nest in a bramble bush, but it seems to have been abandoned. We can't be sure why, but it is a bad location - too close to the pavement and too vulnerable - and their nests also suffer from a high level of predation by other species.

Changes are visible in the plant world too where there really are "green shoots of recovery" to be seen. Cow Parsley is spreading across the ground, particularly around the lower Vicars Hill entrance, ready to accompany the May blossom next month. And the wild Sweet Violets which Nick Bertrand pointed out to us on the Rivers and People walk last month are now coming into flower. Look for a bright green patch just off the path which runs alongside the Cliffview Rd border. On the whole, there is much to look forward to in the coming weeks.


The dawn chorus walk on Thursday was well attended. 15 people turned up at 6 am after a night's rain which was still lightly persisting. Naturally, we heard Great Tits calling everywhere, Wrens with their mighty trilling song, a Blackbird singing beautifully on Eastern Road and saw a Great Spotted Woodpecker high in a tree on the Adelaide Avenue border. Nothing spectacular but sometimes the simplest things can mesmerise. People were much taken by the sight of a female Chaffinch singing on a low branch only a few feet in front of us outside the school. After Hilly Fields, we went on to the Brockley and Ladywell cemeteries where we heard Robins (strangely quiet on Hilly Fields), a Dunnock and, in the distance, the laughing call of a Green Woodpecker - though not everybody heard that, including me! However, everybody did hear a Song Thrush repeating its varied phrases (as many as a hundred in its repertoire) from the top of a tree.

Here's what a Green Woodpecker looks like and what it's laughing call or "yaffle" sounds like:




 The cemeteries are of Victorian origin and, as well as containing much local history, they are in effect a nature reserve in the heart  of Lewisham. In fact, the council has listed them as a Grade 1 Site of Borough Importance for biodiversity and nature conservation purposes. The Friends of Brockley and Ladywell Cemeteries have their own website - http://www.foblc.org.uk/ - and hold guided walks. The next one is on Sunday 21st April starting from the Brockley Road gate at 2pm and lasting about 1 hour 45 mins. Thanks to Lewisham Council for allowing us access to the cemeteries outside normal hours, special thanks to Mike Guilfoyle from the Friends who came along at 7 am to unlock the gate for us and thanks to Rachel for publicising the event via Facebook and http://www.hilly.org.uk/

Thursday, 4 April 2013

Dawn Chorus Walk - Hilly Fields/Brockley and Ladywell Cemeteries

This years dawn chorus walk will take place on Thursday April 11 starting at 6am. This is an hour later than usual (by public demand), but should still be close to dawn as the clocks went forward last weekend. We will meet outside the cafe on Hilly Fields, walk around the park and then go on to Brockley and Ladywell Cemeteries which together are listed as a Grade 1 Site of Borough Importance for nature conservation purposes.

Birds we can expect to hear on Hilly Fields include Blackbird, Robin, Wren and probably one of the Dunnocks which have been vocalising frequently in the last few weeks. In addition, we should hear Magpies chattering, Crows crowing, Blue Tits/Long-tailed Tits tseeping and, almost certainly, that 'Johnny Two Note' - the Great Tit. If we're lucky, we may hear a Mistle Thrush singing (seen but not heard so far this year) or a Great Spotted Woodpecker drumming its bill against a tree trunk.

Mistle Thrush in one of the Eastern Road hawthorns, 24 March
In the Brockley and Ladywell Cemeteries, we may hear a Song Thrush (as we did last year) and see/hear a Green Woodpecker and Britain's smallest bird, the Goldcrest. We may also catch a glimpse of one of the Sparrowhawks which have nested there in recent years. If a 6.00 am start is too horrific to contemplate, we will be entering the cemeteries at 7.00 am via the side gates on Brockley Grove which are opposite house no. 212 and between Amyruth and Henryson Roads. You are welcome to join us there. Please bring binoculars if you can. The walk will finish by 8.00 am but you can drop out at any stage.

Just time for a brief mention of the March bird survey which Terry and I carried out on the 28th of last month. The birds were a little quieter than usual but by the end of our walkabout, we had seen or heard 18 species. It was good to see a small flock of Redwing in the south field, to hear a pair of Dunnocks serenading each other and to see Chaffinches, Long-tailed Tits and Mistle Thrushes. The north field held a flock of about 60 gulls with Common Gulls again living up to their name and outnumbering the Black-headed Gulls by 2:1. However, the Black-headed Gulls are also living up to their name and have developed their 'black' heads (actually a dark chocolate colour) which makes it dead easy to tell the two different types apart. This is their breeding plumage and they will soon be off elsewhere to look for nest sites and partners.

Black-headed Gulls, Hilly Fields, 18 March
In addition to the above, we also saw and/or heard Wrens, Magpies, Blue Tits, Great Tits, Wood Pigeons, Robins (all over the place), Crows, House Sparrows, Greenfinches, a Great Spotted Woodpecker and, last but least, a lone Parakeet.

Monday, 18 March 2013

Good News, Bad News, Sad News

The good news is that the Lewisham Rivers and People Project is coming to Hilly Fields. "The Hill Is Alive! Birds, Beasts and Wildflowers in an Urban Park" is the title of a walk taking place on Thursday 28 March starting at 10.30. Meet on the corner of Adelaide Avenue and Eastern Road. The walk will be led by Nick Bertrand, the legendary Deptford botanist, which means that expert and entertaining commentary about flowers and trees in the park is guaranteed. There will also be input on bird life from the Bird Champions group. We might see a Blackcap like the one in this photo by Keith Ward taken in his back garden which adjoins Hilly Fields:


Or the Great Spotted Woodpecker (below) 'spotted' by Mike Keogh near the lower Vicars Hill entrance on 5 March:


Not sure what "beasts" we'll encounter other than dogs and squirrels, but you never know. Perhaps some bees and butterflies will have appeared by then. I saw my first bumble bee of 2013 last week in Kelsey Park, Bromley.

The bad news is that these are the last months of the Rivers and People Project. After holding regular nature events in Lewisham since April 2010, funding is running out and the project comes to an end in July. Before then, however,there is a packed programme of walks, wades, river dippings - even an introduction to "Pressing and Mounting Wildflowers". The next event is this Saturday (23 March) at Oxleas Wood, starting at 2pm - "a walk around this magnificent ancient woodland". See the Lewisham Nature Conservation website for more details - http://natureconservationlewisham.co.uk/rivers-people/ - or take a look at the programme pinned up outside the cafe.

The sad news is that our ex-parkie, Keith Seabrook, passed away on 28 February after a long illness. Many park users will remember Keith who can be seen in the background of this photo from our RSPB Big Birdwatch event in January 2012.


Always friendly and helpful, Keith kept the park in good order and was very supportive of both the Friends of Hilly Fields and the Bird Champion project. He would often fill up the bird feeder for us if we couldn't get to it and then complain when the parakeets descended on it! The funeral is on Monday March 25 at 9.30 am at Hither Green Crematorium. 

Tuesday, 5 March 2013

February Bird Survey

26 February: such a cold overcast day that I approached Hilly Fields with low expectations, only to hear a Dunnock singing in the Vicars Hill border as soon as I got there. Joined by Sue and Tony, we started off on our usual path alongside the Veda Road back gardens with Great Tits calling almost non-stop from the trees and bushes. Around the corner, a pair of Jays were screeching to each other from opposite ends of the little wood. Shortly afterwards, I managed inadvertently to flush one out of its hiding place and saw it land on the other side of Eastern Road before flying back over the wood to find its mate. The trees along the road also revealed a pair of Greenfinches, a brief sighting of a Mistle Thrush, a Magpie evidently building a nest there and a flurry of Goldfinches twittering around the high branches before shooting off elsewhere. So much activity! It seemed as if the birds were saying: "we have business to conduct whatever the weather". Greenfinches, by the way, are known for the so-called "wheezing" call they make when trying to attract a mate, although it always sounds like a sneer to me. Have a listen to this RSPB recording...
http://www.rspb.org.uk/wildlife/birdguide/name/g/greenfinch/index.aspx

Greenfinches: credit DJS Photography
A few minutes later, we saw two Mistle Thrushes driven out of a tree beyond the playground by a group of noisy Crows. On the north field, another tree held about 30 Starlings going through their repertoire of sound effects while a flock of 30+ gulls was spread around the cricket pitch and along the slope. The great majority were Common Gulls (Sue counted 30) which has been the trend since the start of the year, a reversal of the usual Black-headed Gull dominance and unusual for an Inner London park. After that, it was so cold and drizzly on the high ground that we headed quickly for the Cliffview Road border where there were rather more House Sparrows than usual - up to 10, I would say (as reported by "Hilly" in the comments on the previous post) - and then back uphill to the sanctuary of the cafe. A good morning, though, despite the elements with 18 species seen or heard including 12 Wood Pigeons and small numbers of Robins, Blue Tits, Blackbirds, Parakeets and a Chaffinch in addition to those birds already mentioned.

Common Gull on Hilly Fields
The other news is that a few days before our survey, Sue saw a pair of Collared Doves on Hilly Fields which is another "first" for the site, at least during the time that we've been recording. These birds have a softer look about them than the Feral Pigeon which they resemble from a distance, as well as a black ring around the neck. Although numbers in London have increased considerably since 1995, they still seem fairly uncommon in the Inner Boroughs. You'll know if you've heard one though. In fact, you'll wish you hadn't. Their insistent three note cooing makes the Wood Pigeon sound almost lyrical.

Collared Dove: credit Hawk Conservancy Trust