88 The Wilson Bulletin— :N"o. 108 



per tail-coverts averaging slightly darker, not abruptly 

 white, but light graj^; little or no white on scapulars; 

 lower parts much darker, more strongly tinged with gray, 

 esjDecially on the breast, sides, and flanks; upper parts 

 averaging darker; and the white terminal area on outer 

 rectrix averaging smaller. 



Descri2)t ion.— Type, adult female, No. 196162, U. S. 

 Nat. Mus., Biological Survey Collection; San Fernando, 

 Lower California ; September i, 1905 ; E. W. Nelson and 

 E. A. Goldman; original number, 11644. Pileuni and cer- 

 vix, rather brownish deep neutral gray; back deep mouse 

 gray; rump neutral gray; the shorter middle upper tail- 

 coverts between palli?! mouse gray and pale smolce gray; 

 longest middle upper tail-coverts of similar color but 

 darker; the lateral upper tail-coverts paler, even whitish; 

 scapulars neutral gray, their tips paler; tail black, tipped 

 with white, the two middle feathers very slightly, the outer 

 pair for about 11 mm. ; wings black, the inner Avebs of the 

 secondaries with fuscous margins, the basal part of the 

 inner webs of the primaries and secondaries brownish 

 white; a small speculum at the base of several primaries 

 white ; tips of the tertials, secondaries, and inner primaries, 

 dull white; a narrow band across the extreme forehead, 

 all of the lores, and a broad postocular and subocular band, 

 black; sides of the neck like the cervix; cheeks and sub- 

 ocular region, pale smoke gray; chin, middle of the abdo- 

 men, and crissum, grayish white; remainder of lower parts 

 smoke gray, but the sides and flanks lighter, between pale 

 smoke gray and pale mouse gray; lining of wing of the 

 same color, but edged with Avhitish and paler gray; thighs 

 neutral gray. 



Measurements. — Male:^ wing, 101 mm.; tail, 106.5; ex- 

 posed culmen, 16.8 ; tarsus, 27 ; middle toe without claw, 16. 



Female : ^ wing, 98 mm. ; tail, 98.5 ; exposed culmen, 



^ One specimen, from Lower California. 

 ■ Three specimens, from Lower California. 



