688 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
edge of wing broadly margined with pale grayish brown or dull 
brownish white; bill black; iris dark brown; feet dull livid pinkish. 
Adult male—Length (skins), 138-152 (147); wing, 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 
Washington (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 Leén; mountains near Orizaba, Vera Cruz ?), to high- 
lands of Guatemala (gorge of Rio Guacalate, near Duefias); appar- 
ently breeding throughout its range. 
?Acanthylis saxatilis WoopHOUSE, Rep. Sitgreaves’ Expl. Zufii and Col. R., 1853, 
64 (Inscription Rock, New Mexico).c—Cassin, Illustr. Birds Cel., Tex., etc., 
1855, 252.—Covusgs, Ibis, 1865, 356, in text. 
[Panyptila] saxatilis Cours, Key N. Am. Birds, 1872, 182. 
2 Fourteen specimens. > Ten specimens. 
Ex- ‘ 
Locality. Wing. | Tail. | posed | Tarsus. Bidits 
iculmen. 2 
MALES. 
Ten adult males from Rocky Mountain district, United States.} 140.9 58 6 10.3 7.8 
Three adult males from California..............---222---202 200 139.5 55 5.5 9.8 7 
One adult male from Guatemala. ...........-..--..2..222. 2200 148 60 5.5 9.5 7 
FEMALES. 
Seven adult females from Rocky Mountain district, United 
BHAtegs osidsiciieaie Hecndicisanteicismennlsnies aw nde mioronanucalestisns 142.3 57.6 6.2 10.2 7.4 
One adult female from California............-.-..--------- eee 141 54.5 6 10 6.5 
One adult female from Nuevo Leon (Miquihuana)............. 144.5 54, Veveseece ll 7.5 
One adult female from Guatemala............-...2.-0e see e eens 143.5 59 6.5 10.5 7.5 
¢No specimens obtained, and, although there can be no doubt that this is the 
species seen, the description isnot entirely applicable. See Baird, Rep. Pacific R. R. 
Surv., ix, 1858, 143. 
