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.) 



443. Jl7ifeo sivainsoni Bonap. Swainson's Hawk. (Especially downy 



young.) 

 443. Bnteo pennsyhmnicus (Wils.) Bp. Broad-winged Hawk. (Downy 



young; also adults.) 

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



(Especially downy young.) 



445. Asturina nifida plagiata (Licht.) 'Ridgw. Mexican Goshawk. (Es- 

 pecially downy young.) 



446. Ouychotes gruheri Eidgw. Gruber's Hawk. (Only two specimens 

 known to exist in collections!) 



447. ArcMhuteo lagopus sancU-johannis (Gmel.) Eidgw. American Eough- 

 legged Hawk. (Downy young and melanotic specimens.) 



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

 (Especially downy young and melanotic specimens.) 



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

 pecially rlowny young.) 



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

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

 specimens.) 



453. FseudogrypJius caUfornianus (Shaw) Eidgw. California Condor. 

 (Adults and downy young.) 



454. CatJiartes aura (Linn.) lllig. Turkey Buzzard. (Downy young.) 



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

 (Downy young.) 



461. Zenaidura graysoni Baird. Socorro Dove. 



462. Zeiiaida amabUis Bp. Zenaida Dove. 



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



■f468. Starncenas cyanocephaki (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 jilumage.) 



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

 (Downy young and young in first plumage.) 



471 a. Canace ohscura fuliginosa, Eidgw. Sooty Grouse. 



471b. Canace obscura richardsoni (Dongl.)'BaiTd. Eichardson's Grouse. 

 472. Canace canadensis (Linn.) Bp. Canada Grouse ; Spruce Partridge. 

 (Downy young.) 



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



473 a. Bonasa umbcllus umbelloides (Dougl.) Baird. Gray Eufied Grouse. 

 (Downy young and young in first plumage.) 



