204 BIRDS OF THE WORLD 



In the Hooded Warbler the hind head, neck and 

 throat are black, the face and under parts bright yel- 

 low ; back, tail and wings, olive-green. The outer tail- 

 feathers are mostly white, showing conspicuously 

 when the bird is on the wing. Both this and the pre- 

 ceding species have sweet singing notes, and a sharp 

 call when alarmed. 



The Myrtle Warbler has the top of head, each side 

 of the breast and the rump, yellow, forming a striking 

 contrast to the black-streaked bluish-grey of the 

 upper parts. The throat is white, and there is much 

 black on the breast. Like the other species mentioned, 

 this bird is common in the eastern part of the United 

 States, and the yellow patches of colour make it easy 

 to identify. 



The name of the Blue-winged Warbler is apt to be 

 misleading, since the wings are rather slate-coloured 

 than blue. The tail is the same shade as the wings; 

 the upper parts are olive-green, faintly washed with 

 yellow, and the entire under parts are brilliant yellow. 

 As in many of the Warblers, the wing-coverts are 

 tipped with white, and there are patches of white on 

 the outer tail-feathers. The black line through the 

 eye helps to identify the species. 



The black forehead and cheeks, olive-green back, 

 bright yellow throat and breast of the Maryland 

 Yellow-throat, are found in so many other species of 

 the "Yellow-throats" that only an expert ornithologist 

 can distinguish them one from another. The North- 

 ern Yellow-throat is a somewhat larger form, found 

 quite widely distributed throughout the northern and 

 eastern parts of North America. 



