THE BIRDS OF NEW JERSEY. 187 



black, with a large white spot on the middle, and edged 

 with blue; legs and feet, dirty yellow. In the female the 

 upper parts are an olive green, the white wing patch is 

 very small and the under parts are a soiled yellow. 



The nest is built close to the ground, in thick brush in 

 dense woods or swamps; it is made of bark, grasses and 

 pine needles and is lined with fine roots. The eggs are 

 from three to five in number, of asoiled white, with brown 

 spots, and two-thirds by one-half an inch in size. 



The birds breed from northern New England northward 

 and spend the winter in Florida and southward. In New 

 Jersey they are very common during migrations, occur- 

 ring from May 5 to May 20 and again from September 10 

 to October 10. 



Their song is a zwee-zwee-zwee, their call note z-ip z-ip. 



Their food is composed of insects, generally taken on 

 the wing. 



Warbler^ Hlack-throated Crreen. — Length, five 

 and one-tenth inches; extent, eight inches ; bill, one-fourth 

 of an inch, black; cheeks, bright yellow; line over eye, 

 bright yellow; chin, throat and fore breast, black, continued 

 in a stripe down the sides; back, olive green, in some 

 specimens spotted with black; belly, white, in some 

 specimens tinged with yellow; tail, dusky black, edged with 

 ash, the two outer feathers largely white, the next with 

 a white spot; wings, dusky black, with two white wing 

 bars; legs and feet, brownish yellow. In the female the 

 black on the throat and on the breast is mixed with yel- 

 low, and some fall birds have the black markings but 

 dimly outlined. 



The nest, built in evergreen trees, over fifteen feet 

 from the ground, is made of twigs and moss, lined with 

 fine roots and grasses. The eggs are four in number, 

 white, with brown spots, and two-thirds by one-half an 

 inch in size. 



The birds breed in northern New York and in New 



