688 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



edge of wing broadly margined with pale grayish brown or dull 

 b^o^v^lish white; bill black; iris dark brown; feet dull livid pinkish. 



Adult 7nale.— Length (skins), 138-152 (147); wmg, 131-148 (145); 

 tail, 53.5-63.5 (57.5); exposed culmen, 5-6.5 (5.9); tarsus, 9.5-11 

 (10.2); middle toe, 6.5-8 (7.6).« 



Adult female.— Length (skins), 136-152 (145); wing, 135.5-149 

 (142.5); tail, 52.5-61.5 (57); exposed culmen, 6-6.5 (6.2); tarsus, 

 10-11 (10.3); middle toe, 7-8 (7.3).^ 



Young. — Similar to adults, but white of under parts duller (more 

 or less grayish or sooty) and blackish of sides duller, especially ante- 

 riorly, where more sooty grayish and less strongly contrasted with 

 whitish of throat, etc. 



Western United States and southward to Guatemala; north to 

 Washmgton (Lake Chelan), southern Montana (Belt River), and 

 southwestern Alberta (Henry House), east to western South Dakota 

 (Sturgis; Bad Lands), western Nebraska, Wyoming (Hanton's ranch; 

 between Cheyenne and Fort Laramie), Colorado, New Mexico, and 

 western Texas (Chisos Mountains), south to Lower California (San 

 Pedro Martir Mountains; Coronados Islands; Guadalupe Island), and 

 through Mexico (Senoyita, etc., Sonora; Chico, Hidalgo; Miqui- 

 huana, Nuevo Leon; mountains near Orizaba, Vera Cruz ?), to high- 

 lands of Guatemala (gorge of Rio Guacalate, near Duenas); appar- 

 ently breeding throughout its range. 



"^Acanthylis saxatilis Woodhouse, Rep. Sitgreaves' Expl. Zuni and Col. R., 1853, 

 64 (Inscription Rock, New Mexico). c — Cassin, Illustr. Birds Cvl., Tex., etc., 

 1855, 252.— CouES, Ibis, 1865, 356, in text. 



[Panyptila] saxatilis Coues, Key N. Am. Birds, 1872, 182. 



c No specimens obtained, and, although there can be no doubt that this is the 

 species seen, the description is not entirely applicable. See Baird, Rep. Pacific R. R. 

 Surv., ix, 1858, 143, 



