AMERICAN WARBLERS. 449 



fall migration north of N. C., east of Allegh- 

 anies and in N. E. Frequents open sections, 

 feeding much on ground. Raises and lowers 

 tail. Alarm, a sharp chirp; song, a feeble 

 trill. Nest placed on ground. 



Fig. 356 



Prairie Warbler. 1-3. 



509. YELLOW PALM WARBLER. 



Larger than last, and yellow beneath 

 in all stages. Breeds from northern N. E. 

 north to eastern shore of Hudson Bay; 

 winters from N. C. to southern Fla.; south 

 in Sept., north in April. Common. 



