THE WARBLERS 



Female: Olive-green above, streaked with black; breast and 

 sides with yellowish wash. 



Rang^e: Widely distributed; common in the East during mi- 

 gration. Breeds in the forests of Alaska and north- 

 central Canada, in Michigan, northern Maine, and 

 the mountains of New Hampshire and Vermont. 



BLACK-POLL WARBLERS are similar in coloring 

 to the black-and-white warblers, but are duller and 

 less striking in appearance. In the breeding season, 

 father, mother, and young differ in plumage, though a 

 practiced eye may see resemblances, but in the fall they 

 don coats so similar that they seem to have adopted a 

 family costume. 



The migration of black-poll warblers is interesting. 

 Dr. Wells W. Cooke says: "All black-poll warblers win- 

 ter in South America. Those that are to nest in Alaska 

 strike straight across the Caribbean Sea to Florida and go 

 northwestward to the Mississippi River. Then the direc- 

 tion changes and a course is laid almost due north to north- 

 em Minnesota, in order to avoid the treeless plains of North 

 Dakota. But when the forests of the Saskatchewan are 

 reached, the northwestern course is resumed, and, with a 

 slight verging toward the west, is held until the nesting 

 site in Alaska spruces is attained." ^ 



1 "Our Greatest Travelers," by Wells W, Cooke, of the Biological Sur- 

 vey. 



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