A Synopsis of the Birds of North America

by John James Audubon

100. 1. Trichas Macgillivrayi, Aud. Macgillivray's Ground-Warbler.—Macgillivray's Warbler.

Plate CCCXCIX. Fig. 4. Male. Fig. 5. Female.

Wings rather short, the second quill longest, the fourth longer than the first, the tail long, considerably rounded, its feathers rounded; tarsus longer than the middle toe and claw. Male olive-green above; the head, hind part, and sides of the neck bluish-grey; the fore neck and part of the breast greyish-black, lunulated with greyish-white; a black loral band; a conspicuous white spot on each eyelid; the lower parts bright yellow. Female olive-green above, yellow beneath, the sides of the neck and a band across the breast ash-grey.

Male, 5¹/₄, 6¹/₂. Female, 5, wing 2^4½/₁₂.

Columbia River. Common.

Macgillivray's Warbler, Sylvia Macgillivrayi, Aud. Orn. Biog. v. v. p. 75.

101. 2. Trichas Philadelphia, Wils. Mourning Ground-Warbler.—Mourning Warbler.

Wings of moderate length, with the second quill longest, the fourth shorter than the first; the tail long, considerably rounded, its feathers scarcely pointed; tarsus longer than the middle toe and claw. Male olive-green above, the head, hind part and sides of the neck, bluish-grey; the fore neck and part of the breast deep black, lunulated with white; a blackish loral band, margins of eyelids dusky grey; the lower parts bright yellow. Female olive-green above, yellow beneath, the sides of the neck and a band across the breast ash-grey, the throat yellowish-white.

Male, 5, 8.

New Jersey and Blue Mountains of Vermont. Rare. Migratory.