128 BIRDS OF NEW ENGLAND AND EASTERN NEW YORK 



tail-feathers showing white when spread; under parts bright yel- 

 low. Ad. 9. — Similar, but yellow of head restricted to the 

 forehead; under parts duller. 



Nest, on the ground. Eggs, white, thinly speckled with reddish- 

 brown. 



The Blue-Winged Warbler does not occur north of 

 southern Connecticut and the Lower Hudson Valley, but 



in most of this region it is 

 fairly common. It arrives early 

 in May and leaves early in 

 September. It is found in dry 

 busby fields, on the edges of 

 woodland, and sometimes even 



in swampy growth. It is not 

 Fig. 23. Blue-winged Warbler , . - ,. 



so active as many 01 the war- 

 blers, and gleans its food leisurely among the branches of 

 trees. Its song is characteristic ; the syllables zwee-churr, 

 both notes drawled, represent the ordinary song. It occa- 

 sionally utters a longer, more complicated series of notes. 

 From the Yellow Warbler it may readily be distinguished 

 by its gray wings and by the black line from the bill 

 through the eye. 



Worm-eating Warbler. Helmitheros vermivorus 

 5.51 



Ad. — Head with four black lines, two through the eyes, and 

 two on the top of the head, separated by huffy lines; back olive 

 green in strong light; throat huffy; breast and belly whitish. 



Nest, on ground, always with the heads of a common moss, Poly- 

 trichum, in the lining. Eggs, white, spotted with reddish-brown. 



The Worm-eating Warbler is a regular, but not very com- 

 mon, summer resident of the lower Hudson Valley, is locally 

 common in northern New Jersey, and occurs locally in 

 southern Connecticut. It arrives in May and leaves in 

 August. It is a bird either of dry wooded banks, or of 



