BLACKCAP WARBLER. oul 
In the adult male, the beak is dark horn colour; the 
irides dark brown ; all the upper part of the head above 
the eyes jet black; nape of the neck ash grey; back, 
wings, and tail, ash brown; chin, throat, and breast, like 
the nape, ash-grey ; belly and under wing-coverts white ; 
under surface of quill-feathers and tail grey; legs and 
toes lead colour ; claws brown. 
The whole length five inches and three-quarters. From 
the carpus to the end of the wing, two inches and three- 
quarters; the first quill-feather very short; the second 
longer than the sixth, but not so long as the fifth; the 
third the longest in the wing. 
The female is larger than the male, measuring six inches 
and one-quarter; the top of the head chestnut, and the 
other parts of the plumage more tinged with brown than 
that of the male. 
Young birds resemble the adult female, but the hood is 
not so decidedly conspicuous. Young males do not ac- 
quire the white belly till after their second summer. 
