AMERICAN WARBLERS. 469 



from Mass.; winters in Bahamas. Song, a 

 varied warble. Frequents dry thickets, 

 especially in winter. 



530. NORTHERN YELLOW-THROAT. 



Larger than last, yellow, extending 

 into a point on side of neck, fig. 370. Breeds 



. Fig:. 370 



Northern Yellow-throat. 1-4. 



from N. E. west to Mich., north to Canada, 

 south to Md.; winters from N. C. south to 

 West Indies; south in Oct., north in April. 

 Frequents swampy thickets. Song, witch-i- 

 ty, repeated rather slowly five or six times; 

 a warbling flight song, a continuous ratch- 



