SP. CHAR. _Adult male_ (10,764, Washington, D. C., December). Head, neck, breast, and upper parts light cinereous, palest anteriorly where it is uninterruptedly continuous; occiput somewhat darker, with a transverse series of longitudinal dashes of white, somewhat tinged with reddish. Back, scapulars, and terminal third of secondaries, with a dusky wash, the latter fading at tips; five outer primaries nearly black, somewhat hoary on outer webs beyond their emargination; lesser wing-coverts faintly mottled with paler, or with obsolete dusky spots. Upper tail-coverts immaculate pure white. Tail bluish-cinereous, mottled with white toward base; crossed near the end with a distinct band of black, and with about five narrower, very obscurely indicated ones anterior to this; tip beyond the subterminal zone fading terminally into whitish. Whole under side of wing (except terminal third or more of primaries) pure white; immaculate, excepting a few scattered transverse dusky spots on larger coverts. Rest of under parts pure white everywhere, with rather sparse transverse cordate spots of rufous. Wing, 14.00; tail, 9.20; tarsus, 2.80; middle toe, 1.30. Third and fourth quills equal, and longest; second intermediate between fifth and sixth; first 5.81 inches shorter than longest. Another specimen differs as follows: The fine cinereous above is replaced by a darker and more brownish shade of the same, the head and breast much tinged with rusty. Tail much darker, the last black band twice as broad and near the tip; other bands more numerous (seven instead of five), and although still very obscure on middle feathers are better defined than in the one described; inner webs of tail-feathers (especially the outer ones) tinged with cream-color; white of lower parts tinged with rufous; the deep rufous transverse bars on the breast and sides broader, larger, and more numerous than in No. 16,764; abdomen and tibiæ with numerous smaller cordate spots of rufous; lower tail-coverts with large cordate spots of the same, and a deep stain of paler rufous; lining of wings more variegated. Wing, 14.10; tail, 9.00; tarsus, 2.90; middle toe, 1.30.