II. LIST OE SPECIES . 1 
Page. 
1. Cathartes aura , (Linn.) Illig. Turkey Buzzard. All of North America, except the 
Arctic regions 4 
2. Cathartes calif or nianus, (Shaw,) Cuvier. California Vulture. Western North America 5 
3. Cathartes atratus, (Bartram,) Less. Black Vulture. Southern North America. Central 
America to Chile 5 
(4.) Cathartes burrovianus, Cassin. Burroughs’ Vulture. Mexico, Vera Cruz, Mazatlan. 6 
5. Falco (FalcoJ anatum, Bonaparte. Duck Hawk. North America, east of the Rocky 
mountains 7 
6. Falco (Falco) nigriceps, Cassin. Western North and South America 8 
7. Falco ( Hypotriorchis) columbarius, Linn. Pigeon Hawk. Temperate North America, 
Mexico, Central America, Northern South America 9 
8. Falco (Hypotriorchis) aurantius , Gmelin. Mexico, South America - ■ 10 
9. Falco (Hypotriorchis) femoralis, Temminck. New Mexico, Mexico, South America • • 11 
10. Falco ( Gennaia) polyagrus, Cassin. Prairie Falcon. Western North America 12 
11. Falco (Hier of alco) candicans, Gmelin. Jer Falcon. Northern North America; Green- 
land 13 
12. Falco ( Hierofalco ) islandicus, Sabine. Jer Falcon. Northern North America; Green- 
land 13 
13. Falco ( Tinnunculus) sparverius, Linn. Sparrow Hawk. Entire continent of America • • 13 
14. Astur atricapillus, (Wils.) Bonap. Goshawk. North America; chiefly in the north- 
western portions 15 
15. Accipiter cooperii, Bonap. Cooper’s Hawk. All of temperate North America 16 
16. Accipiter mexicanus, Swains. Western N. America 17 
17. Accipiter fuscus, (Gmelin,) Bon. Sharp-shinned Hawk. Throughout North America 
and Mexico » 18 
18. Buteo swainsoni , Bonap. Swainson’s Buzzard. Northern and Western N. America- • 19 
19. Buteo bairdii , Hoy. Baird’ s Buzzard. Northern and Western N. America 21 
20. Buteo calur us, Cassin. Red-tailed Black Hawk. Western N. America 22 
21. Buteo (Leucopternis) insignatus, Cassin. Western N. America 23 
22. Buteo (Leucopternis) harlani, (Aud.) Bon. Harlan’s Buzzard. Western N. America- • 24 
23. Buteo (Poecilopternis) borealis , (Gmelin,) Vieill. Red-tailed Hawk. Eastern North 
America; fur countries ; Cuba, Jamaica 25 
24. Buteo (Poecilopternis) montanus, Nuttall. Western red-tailed Hawk. Western N. Ame- 
rica. 26 
25. Buteo (Poecilopternis) lineatus, (Gmelin,) Jardine. Red-shouldered Hawk. Eastern and 
Northern N. America 28 
’-When authorities are inclosed in parentheses it shows that the species was first described under a different genus. A 
second authority (or a single one uninclosed) is that of the name as adopted. Extra limital species have their current 
number similarly inclosed 
b4 * 
