216 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



440. Buteo ahhreviatus Caban. Zone-tailed Hawk. (Especially downy 

 young.) 



441. Buteo albicaudatus Vieill. White-tailed Hawk. (Especially downy 

 young.) 



442. Buteo swainsoni Bonap. Swainson's Hawk. (Especially downy 

 young.) 



443. Buteo pennsylvanicus (Wils.) Bp. Broad-winged Hawk. (Downy 

 young; also adults.) 



t444. TJrubitinga anthracina (Licht.) Lafr. Mexican Black Hawk. 

 (Especially downy young.) 



445. Asturina nitida plagiata (Liclit.) Kidgw. Mexican Goshawk. (Es- 

 pecially downy young.) 



446. Onycliotes gruberi Eidgw. Gruber's Hawk. (Only two specimens 

 known to exist in collections!) 



447. Archibuteo lagopus sancti-joliannis (Gmel.) Eidgw. American Eough- 

 legged Hawk. (Downy young and melanotic specimens.) 



448. Archibuteo ferrugineus (Licht.) Gray. Ferruginous Eough-leg. 

 (Especially downy young and melanotic specimens.) 



449. Aquila chrysaetus canadensis (Linn.) Eidgw. Golden Eagle. (Es. 

 pecially downy young.) 



t450. Thrasaetus harpyia (Linn.) Gray. Harpy Eagle. 

 1 452. Haliaetus albicilla (Linn.) Leach. Gray Sea Eagle. (Greenland 

 specimens.) 



453. PseudogrypJms californianus (Shaw) Eidgw. California Condor. 

 (Adults and downy young.) 



454. CafJtartes aura (Linn.) Illig. Turkey Buzzard. (Downy young.) 



455. Catkarista atrata (Wils.) Less. Black Vulture; Carrion Crow. 

 (Downy young.) 



461. Zenaidura graysoni Baird. Socorro Dove. 



462. Zenaida amahilis Bp. Zenaida Dove. 



467. Geotrygnn martinica (Gm.) Bp. Key West Dove. 



1468. Starnoenas cyanocepliala (Linn.) Bp. Blue-headed Dove. 



469. Ortalis vetula maccalli (Baird) Eidgw. Chachalaca; Texan Guan. 

 (Especially downy young.) 



470. Meleagris gallopavo Linn. Mexican Turkey. (Downy young and 

 young in first plumage.) 



470 a. Meleagris gallopavo americana (Bartr.) Coues. Wild Turkey. 

 (Downy young and young in first plumage.) 



471a. Canace obscurafuliginosaJlidgv;'. Sooty Grouse. 



471 &. Canaceobscurarichardsoni (Dougl.) Baird. Eichardson's Grouse. 

 472. Canace canadensis {Lirm.) Bii. Canada Grouse ; Spruce Partridge. 



(Downy young.) 



472 a. Canace canadensis franldini (Dougl.) Baird. Franklin's Grouse. 



473 a. Bonasa umbellus umbcUoides (Dougl.) Baird. Gray Euffed Grouse. 

 (Downy young and young in first plumage.) 



