720 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Coloration. — Upper parts gra,}', with a niK-hiil bund and the rump 

 white; crown and auricular region black; forehead, lores, chin, throat, 

 and post-auricular region red; sexes alike. 



Nidlficat'wn. — Terrestrial. 



Range. — Southwestern border of United States to highlands of Gua- 

 temala. (Monotypic.) 



CARDELLINA RUBRIFRONS (Giraud). 

 RED-FACED WARBLER. 



Adult nude. — Forehead, lores, eyelids, suborbital region (except 

 posterior portion), malar region, chin, throat, upper chest, and sides 

 of neck vermilion or poppy red, most intense on forehead; crown, 

 anterior portion of occiput, auricular region, and posterior portion of 

 suborbital region uniform glossy black; a transverse patch or band of 

 white (usually more or less tinged with pink) on nape, partly hidden 

 by the elongated black feathers of occiput; hindneck, back, scapulars, 

 lesser wing-coverts, and upper riunp uniform gra}^ (varying from 

 slate-gray t mouse gray); lower rump white, sometimes tinged with 

 I)ink; upper tail-coverts gray (rather paler than back, often with still 

 paler or even sometimes whitish tips, especially the shorter coverts; 

 larger wing-coverts, remiges, and rectrices dusky gray with slate-gray 

 edgings the middle coverts more or less distinctly and rather broadly 

 tipped with white or pale gray; under parts of bod}' white, more or 

 less strongly tinged with pink, especially on breast, shading into gray 

 on sides of breast and anterior portion of sides; bill brownish, the 

 maxilla darker; legs and ffeet horn brown (in dried skins); len th 

 (skins), 118-135 (124.5); wing, 65.5-70.5 (BS.l); tail, 57-61 (59.4); 

 exposed culm n, S-!) {"^-fo); tarsus, 17-1S.5 (IT. 7).' 



Adult fe)u<de. — Similar to the adult male in coloration and often 

 quite indistinguishable, but usually very slightly duller in color and 

 averaging a little smaller; length (skins), 113-126 (121.5); wing, 63-70 

 {'o'6)\ tail, 55.5-61 (58.5); exposed culmen, 7.5-9 {^i.'d)^ tarsus, 17-18.5 

 (17.9).^ 



^ Eleven specimens. 



Specimens from different localities average respectively as follows: 



Locality. 



MALES. 



Five adult males from Arizona and Sonora 68.2 59 8.6 17.8 



Three adult males from Durango, Jalisco, and Guerrero 67. 5 59. 3 8. 5 17. 7 



Three adult males from Guatemala 68.3 60 8.8 17.8 



FEMALES. 



Eight adult females from Arizona, Sonora, and northern Chihuahua. 65.9 58.4 8.6 17.9 



Two adult females from .Talisco 66.7 59.5 8.7 17.5 



One adult female from Guatemala 66 58.5 8.6 17.9 



Tarsus. 



