572 BULLETIN 50, UNITED STATES NATIONAL MUSEUM:. 



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



part; Norn. N. Am. Birds, 1881, no. 3575, part.— Dbbw, Aui, ii, 1885, 17 



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



Colorado). 

 [ChordiUs popetue] henryi Coxies, Auk, v, 1888, 37, part. 

 ChordediUs popetue henryi Cotjes, Check List, 2d ed., 1882, no. 400, pa.t. — ^Allbn . 



and Bhewster, Bull. Nutt. Om. Club, viii, 1883, 196 (Colorado Springs, " 



Colorado). 

 C[hordediles\ p[ope1ue\ henryi Cotjes, Key N. Am. Birds, 2d ed., 1884, 454, part. ' * 

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



Co., Colorado). 

 Chordeiles virginianus (not Caprimulgus virgintanus Gmelin) McCattlbt, Bull. 



U. S. Geol. andGeog. Surv. Terr., iii, 1877, 676 (Bed R., n. Texas; habits; crit.). 

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



CHORDEILES VIRGINUNUS HENRYI (Cassia). 



WESTERN mGHTHAWE. 



Resembling C. v. Tiowelli 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 more 

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

 anteriorly. 



AduU moZe.— Length G>efore 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 /emaZe.— Length (before skinning), 222-241 (232);" wing, 

 182-198 (189.5); tail, 102.5-117.5 (110); exposed cuhnen, 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; CapitinMoimtains; crossing of Rio Pecos ; east 

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

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

 City; 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 MoTmtains at 9,000 feet; Santa Rita 

 Mountains; etc.) and southward (breeding) to Chihu&hua (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 (Port Webster, 



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



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



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



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. fur Om., 1867, 263.— Coues, Proc. Ac. Nat. Sci. 



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



"■ Ten Bpecimens. c Six specimens. 



6 Eleven specimens. d Twelve specimens. 



