BIRDS OF NORTH AND MIDDLE AMERICA. 599 
Young male.—Similar to the adult female but feathers of upper 
parts (especially rump and upper tail-coverts) indistinctly margined 
terminally with pale brownish buff or cinnamon, and lateral rectrices 
with much less of cinnamomeous on basal portion. 
Young female.—Similar to the young male but rectrices as in adult 
female. 
Mountain districts of western United States; north to Idaho (Big 
Butte), Montana (Gallatin County); east to eastern base of Rocky 
Mountains in Wyoming (Cheyenne), western Nebraska (Glen, Sioux 
County), Colorado, New Mexico, and western Texas (Chisos Moun- 
tains; Davis Mountains); west to the Sierra Nevada (casually to 
Oakland, California); southward over greater part of Mexico, in 
States of Sonora (Micoba), Nuevo Leén (Cerro de la Silla), Tamauli- 
pas (Miquihuana), Aguas Calientes (Sierra de Calvillo), Durango 
(Guanacavi), Zacatecas (Sierra de Valparaiso), Michoacén (Patzcu- 
aro), Jalisco (Sierra de Bolafios), Colima (Volcan de Colima; Sierra 
Nevada de Colima), Hidalgo (Real del Monte), Mexico (City of 
Mexico; Tenango del Valle; Ajusco; Popocatépetl; Rio Frio, Ixtac- 
cihuatl; Hacienda Eslava; north slope Volcan de Toluca), Puebla 
(Chalchicomula; Pinal), Vera Cruz (Cofre de Perote; Cérdova; Jalapa; 
Miradér), and Oaxaca (Tonaguia) to highlands of Guatemala (moun- 
tains above Totonicapam; Paramos; Cuipaché and San Martin, Que- 
zaltenango; El Rincén, San Marcos); apparently breeding through- 
out its general range. 
Trochilus platycereus Swainson, Philos. Mag., n. s., i, 1827, 441 (Mexico).— 
AMERICAN ORNITHOLOGISTS’ Unron, Check List, 1886, no. 432.—Scort, 
Auk, iii, 1886, 431 (Santa Catalina Mts., Arizona; breeding?).—Stone, Proc. 
Ac. Nat. Sci. Phila., 1890, 214 (Chalchicomula, Puebla) —Mzrarns, Auk, 
vii, 1890, 255 (San Francisco Mts., Arizona, breeding in spruce belt; habits). — 
Merriam, North Am. Fauna, no. 3, 1890, 39 (Grand Cafion of Colorado), 93 
(San Francisco Mts., breeding in balsam and upper part of pine belt; habits); 
no. 5, 1891, 98 (Big Butte, Idaho).—AntHony, Auk, ix, 1892, 363 (s. w. New 
Mexico).—Raoaps, Proc. Ac. Nat. Sci. Phila., 1892, 118 (Santa Catalina 
Mts., Arizona, breeding)—Lowsz, Auk, xi, 1894, 268 (Wet Mts., Colorado, 
breeding at 10,000 ft.). 
T[rochilus] platycercus Ripaway, Man. N. Am. Birds, 1887, 313. 
Ufellisuga] platycercus Gray, Gen. Birds, i, Dec., 1848, 113. 
[Selosphorus] platycercus BoNAPARTE, Consp. Av., i, 1850, 82. 
Selasphorus platycercus GouLD, Mon. Troch., pt. ili, May, 1852, pl. 7; vol. iii, 
1861, pl. 140; Introd. Troch., oct. ed., 1861, 89—SciateR, Proc. Zool. Soc. 
Lond., 1856, 288 (Cérdova, Vera Cruz); 1858, 297 (Oaxaca); 1864, 177 (City 
of Mexico); Cat. Am. Birds, 1862, 298 (Mexico).—Bairp, Rep. Pacific R.R. 
Surv., ix, 1858, 135, 922 (El Paso, Texas; Cantonment Burgwyn, New Mexico; 
Ft. Bridget, Wiontnpy: ed. 1860 (‘‘Birds N. Am.’’), 922, atlas, pl. 43, figs. 
1, 2; Rep. U. 8. and Mex. Bound. Surv., ii, pt. 2, 1859, 6, pl. 5, figs. 1, 2 
(El Paso, Texas; Cantonment Burgwyn, New Mexico); Cat. N. Am. Birds, 
1859, no. 104.—Herwnry, Proc. Ac. Nat. Sci. Phila., 1859, 106 (New Mexico).— 
SciatTer and Satvin, Ibis, 1859, 129 (Guatemala).—Satvin, Ibis, 1860, 196 
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