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. Lesser Black-backed Gull (very occasional)
35. Nuthatch (very occasional)
36. Redwing (seen more in winter/early spring 2013
37. Sparrowhawk (possibly the birds that are known to have bred in Brockley Cemetery)
38. Stock Dove (very occasional)
39. Tawny Owl (heard by Cliffview Road residents in autumn/winter 2012/13, not seen)
40. Willow Warbler. Seen and heard for the first time September 2013
Rare
41. Bullfinch (male, seen by Peter on 19/12/10 on SE edge of the park)
42. Cuckoo (heard once in May 2011)
43. Mallard (two seen by Rachel 10/3/08 approx 7am 'waddling up the park end of Eastern Rd')
44. Short-eared Owl (seen overhead 13/10/12 being mobbed by crows. Probably same bird recorded over London Wetland Centre earlier that day
Updated Jan 2014
