PLATE XLVII. BLACK-THROATED BLUE WARBLER. 



Dendroica ccerulescens. 



Above gray-blue ; sides of head, throat and sides of body black ; 

 breast and belly white ; wings dark, with a white patch, and some of 

 the feathers edged with blue ; tail dark, nearly even, some of its feathers 

 bordered on the outer edge with blue, and patched on some of the 

 inner webs with white ; bill black ; feet brown. Length, 5.25 inches. 



Migratory. Arrives early in May, leaves early in October. Nests in bushes. Most 

 abundant during the migrations. 



The following extracts from Mr. Burroughs admirably characterize the song and 

 habits of this Warbler : 



Song : " twea-tivea-t-weaee in the upward slide, and with the peculiar ^-ing of Summer 

 insects, but not destitute of a certain plaintive cadence. It is one of the most languid, 

 unhurried sounds in all the woods. I feel like reclining upon the dry leaves at once. 

 Audubon says he has never heard his love-song ; but this is all the love-song he has." 



Habits : "He has a preference for dense woods of beech and maple, moves slowly 

 amid the lower branches and smaller growths, keeping from eight to ten feet from the 

 ground, and repeating now and then his listless, indolent strain." 



