672 BULLETIN 50, UNITED STATES NATIONAL MUSEUML. 



Chordeiles popetue henryi Ridgway, Proc. U. S. Nat. Mus., iii, Aug. 24, 1880, 188, 



part; Nom. N. Am. Birds, 1881, no. 3576, part. — Drew, Auk, ii, 1885, 17 



(Colorado, breeding up to 11,000 ft.). — Beckham, Auk, ii, 1885, 143 (Pueblo, 



Colorado). 

 [Chordiles popetue] henryi Coues, Auk, v, 1888, 37, part. 

 Chordediles popetue henryi Coues, Check List, 2d ed., 1882, no. 400, pa/t. — Allen 



and Brewster, Bull. Nutt. Orn. Club, viii, 1883, 196 (Colorado Springs, 



Colorado). 

 C[hordediles] p[opetu£] henryi Coues, Key N. Am. Birds, 2d ed., 1884, 454, part. 

 Chordiles popetue henryi Drew, Bull. Nutt. Orn. Club, vi, 1881, 140 (San Juan 



Co., Colorado). 

 Chordeiles virginianus (not Caprimulgus virginianus Gmelin) McCauley, Bull. 



U. S. Geol. and Geog. Surv. Terr., iii, 1877, 676 (Red R., n. Texas; habits ; crit.). 

 Chordeiles virginianus howelli Oberholser, Bull. 86, U. S. Nat. Mus., 1914, 57. 



CHORDEILES VIRGINIANUS HENRYI (Cassin). 



WESTERN NIGHTHAWK. 



Resembling C. v. howelli but general aspect of upper parts decidedly 

 darker, the darker markings more blackish, the paler ones more 

 ochraceous or tawny and also larger or coarser; under parts m.ore 

 strongly buffy posteriorly, more or less tinged or suffused with tawny 

 anteriorly. 



Adult maZe.— Length (before skinning), 229-243 (236) ;« wing, 

 188-209.5 (199.7); tail, 104-116.5 (111.1); exposed culmen, 6.5-7.5 

 (7); tarsus, 13.9-15.8 (14.6); middle toe, 14-16.5 (15).* 



Adult female.— Length, (before skinning), 222-241 (232) ;« wing, 

 182-198 (189.5); tail, 102.5-117.5 (110); exposed culmen, 6-7.5 (6.6); 

 tarsus, 12.5-14.8 (14.1); middle toe, 13.2-16 (14.7).^^ 



More southern portions of Rocky Mountain district and adjacent 

 higher plains, in southwestern Colorado (Montrose), New Mexico 

 (Hachita; Santa Rosa; Capitdn Mountains; crossing of Rio Pecos; east 

 side of San Luis Mountains ; Zuni Mountains ; Copperton; Taos; Fort 

 Webster; Roswell; Glorieta; etc.), west-central Texas (Paisano; Pecos 

 Gty; RioMimbres; Fort Stockton; Fort Chadbourne ; San Antonio; 

 Fort Clark; etc.), and Arizona (Navajo County; San Francisco 

 Mountain; Fort Verde; Flagstaff; Gila River; Hualapai Mountains; 

 Fort Huachuca; Huachuca Mountains at 9,000 feet; Santa Rita 

 Mountains; etc.) and southward (breeding) to Chihuahua (Babicora), 

 and Sonora (Nogales); in migration southward to Jalisco (Guadala- 

 jara) and Tamaulipas (Montelunga, April 30; Victoria, April 23). 

 Chordeiles henryi Cassin, lUustr. Birds Calif., Tex., etc., 1855, 239 (Fort Webster, 



New Mexico; type in coll. U. S. Nat. Mus.). — Baird, Rep. Pacific R. R. 



Surv., ix, 1858, 153 (Rio Grande Valley, crossing of Rio Pecos, Rio Mimbres, 



and Ft. Chadbourne, Texas); ed. 1860 (Birds N. Am.), atlas, pi. 17; Rep. 



U. S. and Mex. Bound. Surv., ii, pt. 2, 1859, 7, pi. 17 (Los Nogales, Sonora); 



Cat. N. Am. Birds, 1859, no. 115, part. — Sclater, Proc. Zool. Soc. Lond., 



1866, 133 (monogr.); Journ. fiir Orn., 1867, 263.— Coues, Proc. Ac. Nat. Sci. 



Phila., 1866, 58 (Ft. Whipple, Arizona; crit.). 



o Ten specimens. c Six specimens. 



b Eleven specimens. <i Twelve specimens. 



