834 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM, 



becoming gray basally on outer web, the middle pair having the 

 greater part of both webs gray; wings black, the middle coverts 

 broadly tipped with white (forming a conspicuous band), the greater 

 coverts edged w^th white (more broadly at tip and on innermost 

 coverts), the secondaries edged (except basally) with white, more 

 broadly and continuously so on the innermost (tertials), the pri- 

 maries very narrowly edged with white or pale gray; sides of head 

 (including greater part of loral region) and neck and under parts 

 plain light gray (about no. 9), fading into white or grayish white on 

 chin and more or less of upper throat, the under tail-coverts white; 

 axillars and under wing-coverts very pale gray, usually indistinctly 

 freckled or barred terminally with white; inner webs of remiges 

 broadly edged with white; bill dusky (grayish blue or bluish gray 

 in life), with paler (often whitish) tip and tomia; iris brown; legs 

 and feet dusky horn color (more or less bluish in life ?) ; length (skins) , 

 135-163 (147) ; wing, 74-87(81.8) ; tail, 58-66.5(62.7) ; exposed culmen, 

 13.5-15.5 (14.3); tarsus, 18.5-20.5 (19.9); middle toe, 11.5-12.5 (12).« 

 Adult female. — Pileum and nape with tips of feathers glossy blue- 

 black, the mesial and basal portions dull black or rusty brown; ante- 

 rior portion of forehead light rusty brown or cinnamon, more or 

 less spotted with black; back, scapulars, rump, and upper tail- 

 coverts plain light buff-tawny or cinnamon-ochraceous, the extreme 

 upper back slightly duller (browner) ; tail and wings as in the adult 

 male, but with buff-tawny or tawny-buff replacing the white and 

 gray; sides of head, and neck and collar across hindneck, plain buff 

 or tawny-buff; under parts varying from tawny-buff to almost prim- 

 rose yellow, shading into deeper tawny-buff or somewhat olivaceous 

 buff laterally; axillars and under wing-coverts pale cream-buff to 

 deep buff; inner webs of remiges broadly edged with light ochraceous- 

 buff; bill, iris, and feet as in adult male; length (skins), 136-164 (151) ; 

 wing, 76-84.5 (80.5); tail, 58-65 (61.5); exposed culmen, 13.5-15.5 

 (14.3); tarsus, 19-21 (20.1); middle toe, 11.5-12.5 (11. 8).^^ 



a Fifteen specimens. 

 6 Twelve specimens. . 



Locality. 



Ten adult males from Mexico (Nuevo Leon and Vera Cruz). 

 Five adult males from Guatemala 



Eight adult females from Mexico (Nuevo Leon and Vera 



Cruz) 



Four adult females from Guatemala 



Wing. 



83.8 

 77.8 



81.8 



77. 7 



Tail 



64. 1 

 60 



02. 8 

 59 



Ex- 

 posed 

 culmen. 



14.4 

 14.2 



14.6 

 13.7 



Tarsus. 



20.1 

 19.5 



20.3 

 19.9 



Middle 

 toe. 



12.1 

 11.9 



11.9 

 11.6 



Besides averaging smaller than specimens from Mexico, Guatemalan examples, as a 

 rule, have the interscapular area less solidly black and the under parts very slightly 



