THE WILLOW WARBLER 
PHYLLOSCOPUS TROCHILUS 
Loca names in surrounding districts : 
Stratus 1n British Avirauna: A common and widely 
distributed summer visitor, found almost everywhere. 
Raprat DistrrBUTION WITHIN FIFTEEN MILES OF ST. 
Paut’s: The Willow Warbler is one of the commonest 
of the smaller summer migrants to be found through- 
out the Metropolitan area in most suitable places in the 
wooded and rural suburbs. I have records from many of 
the urban parks, having seen this species in St. James’s 
Park, Battersea Park, Hyde Park, Regent’s Park, Victoria 
Park, on Clapham Common, and in some of the larger 
cemeteries, although I cannot say that it nests in any of 
them. Beyond these limits, however, we reach districts 
where the Willow Warbler habitually spends the whole 
summer. It would be impossible to mention all of them 
here, but I may instance such localities as Dulwich, 
Putney, Streatham, Tooting, Wimbledon, Richmond, 
Kew, Osterley, Acton, Ealing, Hanwell, Willesden, 
Harlesden, Wembley, Harrow, Highgate, Hampstead, 
Hendon, Enfield, Waltham, Epping, Wanstead, Hford, 
the Crays, Croydon, Norwood, Sydenham, Mitcham, 
Ewell, Kingston, and Merton. As our radius widens 
into the country the Willow Warbler becomes even yet 
more abundant; whilst in spring and autumn it is by no 
means an uncommon visitor to gardens and private grounds 
within a few miles of the City. 
This pretty bird, one of the smallest of our summer 
migrants, reaches the London suburbs early in April, and 
quits them again at the end of September or early in 
October. Alert and restless, it may be watched hopping 
from twig to twig, ever and anon bursting into a delight- 
ful little song—a series of sweet and plaintive notes in a 
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