BLACK-THROATED GRAY WARBLER. 
665. Dendroica nigrescens. 4% inches. 
Range. —Western North America, British Columbia to Lower 
California. A small bird, with a black throat and bieast, 
forming a circle about the neck, and black on top of the 
head. They are found mostly in the woodlands, bordered 
with thickets, in which they will place their nests, within 
a few feet of the ground. It much resembles that of the 
Yellow Bird, being compact and made of the same materials. 
Three or four eggs are creamy white, spotted with brown, 
forming a wreath about the larger end (.65x.52). 
BLACK-THROATED GREEN WARBLER. 
667. Dendroica virens. 5 inches. 
Range. —Mostly in the eastern part of North America, but 
occasionally in the southern Rockies, Texas and Arizona. 
Black throat and breast, with bright yellow cheeks and olive 
head and back (not illustrated). 
TOWNSEND WARBLER. 
668. Dendroica townsendi. 5 inches. 
Range. —Western United States. A similar bird to the 
above, with black on top of the head in place of the olive. 
Nesting habits are practically the same, as are also the eggs. 
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