AMEEICAN WARBLEHS. 441 



male and younsr, green above and pale 

 green beneath, streaked above and on 

 breast with bhick; wing-bands often pale 

 green; under tail coverts, white. Breeds 

 from extreme northern N. E. and northern 

 Mich, to Hudson Bay; winters in northern 

 S. A.; north in May, south in Sept. and 

 Oct. Frequents orchards and low growths 

 of w^oodlands. Song, a weak zijj, given 

 four or five times very quickly; occasionally 

 heard in autumn. 



501. BAY-BREASTED WARBLER. 



Size of last; crown, throat and sides, 

 red-brow^n or bay; sides of head and fore- 

 head, black; white wing bands and tail 

 spots; beneath, buff, fisf. 350. Female, 

 autumnal male and young, like same plum- 

 ages in Black poll, but if not showing some 

 trace of bay, always differ in having under 

 tail coverts buff. Breeds fiom northern N.E. 

 and Mich, to Hudson Bay; winters in north- 

 ern S. A., south in Sept. and Oct., north in 



