BIRDS OF NORTH AND MIDDLE AMERICA 167 



Immature. — Similar to that of A. hicolor hicolor. 



Natal down. — Undescribed. 



Adult male. — Wing 251; tail 217.5; ciilmen from cere 18.5; tarsus 

 67.3; middle toe without claw 41.5 mm. (1 specimen). 



Adult female . — The measurements of the type as given by Bangs 

 and Noble (Auk, xxxv, 1918, 444) are: Wing 260; tail 209; culmen 

 from cere 20.5; tarsus 67 mm. An immature female: Wing 255; 

 tail 212; culmen from cere 18: tarsus 68 mm. 



Range. — Southern Mexico in the states of Veracruz (Buena Vista, 

 Playa Vicente, Jalapa, Portrero) and Oaxaca (Tehuantepec). 



Type locality. — Buena Vista, Veracruz, Mexico. 



Accipiter pileatus (not Falco pileatus Temminck) Sclater, Proc. Zool. Soc 

 London, 1859, 389 (Playa Vicente, Veracruz, Mexico). — Salvin, Ibis, 1861. 

 355, part (e. Mexico). 



Accipiter hicolor (not Sparvius hicolor Vieillot) Sclater and Salvin, Nom. Av. 

 Neotr., 1873, 120, part (Mexico). — Beristain and Latjrencio, Mem. y Rev. 

 Soc. Cient. "Antonio Alzate," vii, No. 7-8, 1894, 227 (Veracruz and Tehuan- 

 tepec, Mexico). — Salvin and Godman, Biol. Centr.-Amer., Aves, iii, 1899, 

 47, part (Potrero, Jalapa, and Playa Vicente, Veracruz; Tehuantepec, 

 Oaxaca).— SwANN, Synopt. List Accip., pt. 1, 1919, 37, part (s. Mexico). 



Nisus hicolor Ridgwat, Bull. U. S. Geol. and Geogr. Surv. Terr., ser. 2, Bull. 2, 

 1876, 107, part (s. Mexico). 



Lepthierax hicolor Heine and Reichenow, Nom. Mus. Hein. Orn., 1890, 254 

 (Jalapa, Veracruz). 



Accipiter hicolor fidens Bangs and Noble, Auk, xxxv, 1918, 444 (Buena Vista, 

 Veracruz, Mexico; coll. Mus. Comp. Zool.). — Swann, Synop. Accip., pt. 1, 

 1921, 62; Monogr. Birds Prey, i, 1926, 334 (monogr).— Bangs, BuU. Mus. 

 Comp. Zool., Ixx, 1930, 188 (type in Mus. Comp. Zool.). — Peters, Check- 

 list Birds of World, i, 1931, 217. 



Accipiter scifasciatus (not of Swainson) Cabanis, Journ. fur Orn., xvii, 1869, 

 208, part (Veracruz, Mexico). 



ACCIPITER COOPERn (Bonaparte) 



Cooper's Hawk 



Adidt male. — Forehead blackish plumbeous, each feather edged 

 with cimiamon-buff, pinkish buff, light ochraceous-buff , or vinaceous- 

 buff, sometimes narrowdy, so that the whole area is predominantly 

 blackish, but often mdely, giving the forehead a distinctly buffy 

 appearance; CTOwn and occiput sooty black to plumbeous-black, 

 becoming more fuscous-black in worn plumage, with snow white bases 

 to the feathers of the latter area; remainder of upperparts dark 

 plumbeous to deep mouse gray, becoming somewhat fuscous in worn 

 plumage, the nape abruptly lighter than the occiput, and often tinged 

 with sayal brown; feathers of the nape, back, scapulars, and rump 

 with darker shafts; scapulars with concealed cordate and circular 

 spots of white; upper tail coverts sharply tipped with white and often 

 with a more-or-less developed single white band, tail m^ore brownish 



