Melanerpes formicivorus.
Sp. Char. Fourth quill longest, third a little shorter. Above and on the anterior half of the body, glossy bluish or greenish black; the top of the head and a short occipital crest red. A white patch on the forehead, connecting with a broad crescentic collar on the upper part of the neck by a narrow isthmus, white tinged with sulphur-yellow. Belly, rump, bases of primaries, and inner edges of the outer quills, white. Tail-feathers uniform black. Female with the red confined to the occipital crest, the rest replaced by greenish-black; the three patches white, black, and red, very sharply defined, and about equal. Length about 9.50; wing, 6.00; tail, 3.75.
Hab. Pacific Coast region of the United States and south; in Northern Mexico, eastward almost to the Gulf of Mexico; also on the Upper Rio Grande; south to Costa Rica. Localities: Oaxaca (Scl. P. Z. S. 1858, 305); Cordova (Scl. 1856, 307); Guatemala (Scl. Ibis, I, 137); Honduras (Scl. Cat. 341); Costa Rica (Cab. J. 1862, 322); W. Arizona (Coues, P. A. N. S. 1866, 55).
In most specimens one or two red feathers may be detected in the black of the breast just behind the sulphur-yellow crescent. The white of the breast is streaked with black; the posterior portion of the black of the breast and anterior belly streaked with white. The white of the wing only shows externally as a patch at the base of the primaries.
PLATE LIII.
1. Melanerpes formicivorus. ♂ Cal., 5495.