Range. - Western United States, from the Rockies to the Pacific and from Alaska southward; winters in Mexico.

This is the common western representative of the last species, and is similar but has black ear patches and the crown is black. They nest in coniferous woods throughout their United States and Canadian range, the nests being placed at any height from the ground and being constructed like those of the Black-throated Green. Their eggs are not distinguishable from those of the latter. Size .60 x .50.

White.

Black-throated Green Warbler. Townsend's Warblers.