Range. - North America east to the Plains, breeding north to Labrador.

This Vireo is nearly as abundant as the Redeye but is not generally as well known, probably because it is usually higher in the trees and more concealed from view. Their nests are like those of the Red-eye, but smaller and usually placed higher in the trees. The birds are even more persistent singers, than are the latter but the song is more musical and delivered in a more even manner, as they creep about among the foliage, peering under every leaf for lurking insects. The eggs are pure write, spotted with brown or reddish brown. Size .72 x .52.

White.

White.

White.

627a. Western Warbling Vireo. Vireo-Sylva Gilva Swainsoni

Range. - Western United States, breeding from Mexico to British Columbia.

This species is like the last but said to be a trifle smaller and paler color. Its nesting habits and eggs are precisely like those of the eastern form.