_Adult female_ (26,588, Washington, D. C.; Elliott Coues). Similar to the male. Forehead tinged with brownish; upper plumage much less bluish. Neck and ear-coverts uniformly rufous, with black shaft-streaks, there being no ashy wash as in the male. Tail decidedly less bluish than in the male, crossed with four bands, three of which are exposed. The rufous bars beneath less vinaceous than in the male, but of about the same amount, rather predominating on the tibiæ. Wing, 10.70; tail, 9.00; tarsus, 2.45; middle toe, 1.80. Fourth and fifth quills longest and equal; third longer than sixth; second intermediate between sixth and seventh; first three inches shorter than longest. _Young male_ (55,498, Fort Macon, N. C., February; Dr. Coues). Above grayish-umber; feathers of forehead, crown, and nape faintly edged laterally with pale rusty; occiput unvaried blackish, feathers white beneath the surface. Wing-coverts, scapulars, and interscapulars narrowly bordered with pale yellowish-umber; rump and upper tail-coverts bordered with rusty. Tail paler umber than the back, narrowly tipped with white, and crossed by four bands of brownish-black, the first of which is only partially concealed. Scapulars and upper tail-coverts showing much concealed white, in form of roundish spots, on both webs. Beneath clear white, without any yellowish tinge; throat with a medial and lateral series of clear dark-brown streaks; jugulum, breast, sides, flanks, and abdomen with numerous stripes of clear sepia, each showing a darker shaft-streak; tibiæ with longitudinal streaks of paler and more rusty brown; lower tail-coverts immaculate. _Young female_ (6,876 “Sacramento Valley, Cal.”; Dr. Heermann—probably from Pennsylvania). Similar to young male; more varied, however. The black middle streaks of feathers of head above narrower, causing more conspicuous streaks; white spots of scapular region considerably exposed; longitudinal stripe beneath narrower and more sparse. HAB. North America in general, but rare in the western division; Eastern Mexico. Not found in West Indies, where replaced by _A. gundlachi_, LAWR. Localities: Southeastern Texas (DRESSER, Ibis, 1865, 323, breeds); Arizona (_Coues_, Prod. 1866, 43); Costa Rica (LAWR. IX, 134). LIST OF SPECIMENS EXAMINED. National Museum, 12; Philadelphia Academy, 16; New York Museum, 3; Boston Society, 2; Cambridge Museum, 1; Cab. G. N. Lawrence, 7; Coll. R. Ridgway, 4; Museum, W. S. Brewer, 1. Total, 46. _Measurements._