RUSSET-BACKED THRUSH.

758. Hylocichla ustulata. 7½ inches.

Range.—From Alaska to Central America, breeding in the northern part, in Oregon and Alaska. Their nests are made and placed usually the same as the above, the eggs being of the same size, but of a lighter color. The Thrushes feed on small insect life and many of the small fruits and berries.

OLIVED-BACKED THRUSH.

758a. Hylocichla u. swainsoni. 7½ inches.

Range.—North America, breeding on the western coast in Alaska, Oregon, California and Colorado. Their nesting habits, eggs and song are the same as the [Russet-backed] (not illustrated).

ALASKA HERMIT THRUSH.

759. Hylocichla guttata. 6½ inches.

Range.—Alaska to Mexico, breeding in its extreme northern range. These birds are noted for their sweet and musical song, which may be heard from the swamps and thickets in which they make their home. They nest either on or near the ground, building it of shreds of vines, leaves and grasses. Four bluish green eggs, unmarked, are usually laid (.85 × .65).