BIRDS OF NORTH AND MIDDLE AMERICA 685 



Adult female.— Wing 272-302 (290.4); tail 192-207 (198.7); ciilmen 

 from cere 17-20 (19); tarsus 50-60 (55.8); middle toe without claw 

 38-42 (40 mm.).^'^ 



Range. — Breeds from southern Arizona (Camp Bowie; Fort 

 Huachuca; Tucson (1 record)); southwestern New Mexico (Lake 

 Palomas; Apache; Hachita; Playas Valley; Rincon; Jornada; Engle; 

 Silver City; Rio Mimbres; Sepur) and southern Texas (Brownsville; 

 Lower Rio Grande; trans-Pecos district) (now extremely rare in most 

 or all of its range in the United States); south through Mexico to 

 Yucatdn (Tamaulipas — Altamira; Tampico; Sinaloa— Mazatldn; 

 Nayarit— San Bias; Veracruz — Jalapa; Oaxaca — Tehuantepec; Yuca- 

 tan; and Chiapas — Prusia). 



Winters thi-oughout its range, but may be scarce in winter in the 

 northern part (New Mexico, etc.) ; has been taken once in Guatemala 

 (San Agustin) . 



Type locally. — Fort Huachuca, Ariz. 



Hypotriorchis femoralis (not Falco femoralis Temminck) Gray, List Spec. Brit. 

 Mus., pt. 1, Accip., ed. 2d., 1848, 56, part (Mexico).— Cassin, Proc. Acad. 

 Nat. Sci. Philadelphia, 1855, 278 (New Mexico); in Baird, Rep. Pacific R. R. 

 Surv., ix, 1858, 11 (New Mexico); 1860 ed., pi. 1.— Sclater, Proc. Zool. Soc. 

 London, 1856, 285 (state of Veracruz, Mexico). — Brewer, North Amer. 

 Oology, pt. 1, 1857, 14, pi. 3, fig. 22; Ibis, 1878, 487 (lower Rio Grande 

 Valley, Tex.).— Baird, Cat. North Amer. Birds, 1859, No. 9.— Heermann, 

 Rep. Pacific R. R. Surv., x. No. 1, 1859, 9, pi. 1 (s. New Mexico; descr.; 

 habits).— Sclater and Salvin, Ibis, 1859, 219 (Guatemala); Nom. Av. 

 Neotr., 1873, 121, part. — Lawrence, Mem. Boston Soc. Nat. Hist., ii, 1874, 

 301 (MazatMn, Sinaloa; habits); U. S. Nat. Mus. Bull. 4, 1876, 39 (Tehuan- 

 tepec City, Oaxaca). — Boucard, Proc. Zool. Soc. London, 1883, 457 (Yuca- 

 tdn). — Beristain and Laurencio, Mem. y Rev. Soc. Cient. "Antonio 

 Alzate," vh, 1894, 223 (Mexico; listed). 



Falco femoralis (not of Temminck) Baird, Rep. U. S. and Mex. Bound. Surv., 

 ii, pt. 2, 1859, 3 (s. New Mexico). — Sumichrast, Mem. Boston Soc. Nat. 

 Hist., i, 1869, 560 (hot region, Veracruz). — Cooper, Orn. California, Land 

 Birds, 1870, 461 (Arizona; New Mexico).— Cotjes, Key North Amer. Birds, 

 1872, 215; Check List North Amer. Birds, 1873, No. 347.— Henshaw, Rep. 

 Orn. Spec. Expl. West 100th Meridian, 1874, 137 (Camp Bowie, Ariz.); 

 Zool. Expl. Y{. 100th Meridian, Orn., 1875, 413 (Camp Bowie).— Cubas, 

 Cuadro Geogr., Estadfstico, Descr. e. Hist, de los Estados Unidos Mexicanos, 

 1884, 170 (Mexico; common names). 



Falco (Hypotriorchis) femoralis Cotjes, Proc. Acad. Nat. Sci. Philadelphia, 1866, 43 

 (s. Arizona). 



Falco {Rhynchofalco) femoralis Ridgway, in Baird, Brewer, and Ridgway, Hist. 

 North Amer. Birds, iii, 1874, 155. 



Aesalon femoralis Salle and Parzudaki, Cat. Oiseaux Mexique, 1862, 1 (Mexico). 



Rhynchofalco femoralis Goode, U. S. Nat. Mus. Bull. 20, 1883, 340. 



Hypotriorchis aurantius (not Falco auraniius Gmelin) Heermann, Proc. Acad. 

 Nat. Sci. Philadelphia, 1854, 117. 



Falco fusco-caerulescens (not F. fusco-coerulescens Vieillot) Sharpe, Cat. Birds 



^* Seven specimens from Texas, Arizona, New Mexico, and Mexico. 



