FA if. VII. WOOD WARBLERS 



95 



Wilson's Warbler 



bier with a distinct black cap, but no wing bars or tail blotches. 

 Female similar, but usually lacks the black cap. It is gener- 

 ally to be found, among low 

 bushes near the water, and 

 acts much like the true fly- 

 catchers in its habit of dart- 

 ing in and out by short 

 flights, in search of its insect 

 prey. The flycatchers proper 

 almost invariably return to 

 the same twigs from wdiich 

 they darted; the warbling 

 flycatchers do not. (Green 

 Black-capped Warbler.) 



Length, 4f ; wing, 2| (2-2|); 

 tail, 2; cuhnen, \ + . North 

 America from the Rocky Mountains eastward ; breeding mainly north of 

 the United States, and wintering south to Central America. 



39. Canadian Warbler (686. Si/lvdnia ccuiadetisis). — A gray- 

 backed, flycatching warbler with all the lower parts yellow, 

 except a necklace of black spots across the breast, and white 

 under tail coverts. It is without either wing bars or tail 

 blotches, but has spots of black on the crown, black sides of 



neck, and a yellow spot in 

 front of the eye. Female lacks 

 the black of the head, and the 

 necklace is made up of dusky 

 spots. It is generally to be 

 found in the same localities as 

 Xo. 38 and has about the same 

 habits. It is a loud but sweet 

 singer. 



Canadian Warbler Length, 5i ; wing, 2| ; tail, 2\ ; 



culmen, |. North America, from 

 the Plains eastward ; breeding from northern New York northward (far- 

 ther south in the mountains), and wintering south of the United States to 

 northern South America. 



