THE WARBLERS 



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black; the tail is chestnut, tipped with blackish brown, excepting, of course, the 

 two central tail feathers, which are blackish brown throughout; the breast and 

 lower parts being slaty gray. The female and young males have the upper parts 

 brownish gray, and lack the black throat of the adult male; the males of the year 

 breeding in the gray plumage just described. 



So much difference of opinion prevails among ornithologists as to 

 the generic limitation of the birds here included under Erythaciis, that 

 it will not be of much use to attempt to define the genus. For 

 instance, while Professor Newton includes the blue-throated warbler in Rutitilla, 

 Mr. Gates makes it the type of a distinct genus, Cyanccula, and while the same orni- 



Blue-Throated 

 Warbler 



BLUE-THROATED AND RUBY-THROATED WARBLERS. 

 (Two- thirds natural size.) 



thologist separates the nightingales (as Daulias) from the redbreasts, Dr. Sharpe 

 places both in the present genus. We accordingly proceed to notice some of the 

 better-known species without further preliminaries. One of the loveliest of all the 

 group is the blue- throated warbler (Erythacus suecicus], the Arctic form of which, 

 represented in the cut, has the bine gorget spotted with chestnut red; while on 

 the other hand the variety of the bluethroat breeding south of the Baltic has the 



