312 BLACK-THROATED BLUE WABBLER 



Black-throated Blue Warbler : Dendroica ccerulescem 

 and race. 



(See Fig. 188, p. 347.) 



Adult male, throat and band along sides black ; rest of under 

 parts pure white ; upper parts bluish gray ; white spot on vying 

 in both sexes. Adult female, upper parts olive-green ; under 

 parts soiled buffy ; young male, like adult male ; young female, 

 like adult female. Length, about 5j inches. 



Geographic Distribution. — Eastern North America ; breeds 

 from northern Minnesota and Connecticut (rarely) northward 

 to Labrador, and south along the crest of the Alleghanies to 

 Georgia ; winters in the tropics. 



Be on your guard. Wlien you first see the 

 female Blue you will be tempted to jump to a con- 

 clusion. But don't say that she is a female Red- 

 start until you have looked closely at her wing, 

 and then — you won't say it at all. The small 

 white spot is her mark, and by its j)resence you 

 may surely know her. Her mate has it, too, but 

 with him it seems redundant, for he wears a blue 

 coat, his head and throat are jet-black, and his 

 under parts pure snowy white. Then, too, when 

 he is on a branch with his side turned toward you 

 so that his other points are not so plainly to be 

 seen, you can tell him by the black line that runs 

 along his side under his wing, like the tug on a 

 horse in harness. 



Like the Black-throated Green, this is one of 

 the loveliest of all the Warblers of the woodlands. 

 Its song has the same z-y leisurely quality as the 



