450 | [ DECEMBER, 
The Committee on Mr. Cassin’s “Synopsis of the Falconide, &c.,” 
reported in favor of publication in the Proceedings. 
Synopsis of the Brees of Fauconipe which inhabit America north of eo. 
with descriptions of new species. 
By Joun Cassin. 
I. Subfamily FALCONIN 2. 
1. Genus Fatco, Linn. 
1. Falco anatum, Bonaparte. Comp. List., p. 4, (1838). Wilson. Am. Orn., 
ix. pl. 76. Aud. B. of Am., pl. 16. 
Hab. Eastern North America, Cuba. 
2. Falco nigriceps, Cassin. Birds of California and Texas, i. p. 87, (1853). 
Hab. Western North America, Chili. 
3. Falco polyagrus, Cassin. Birds of California and Texas, i. p. 88, (1853.) 
Hab. Oregon, California. 
2. Genus Hirroratco, Cuvier. 
1. Hierofalco sacer, (Forster.) Aud. B. of Am., pl. 196. 
Falco sacer, Forster. Philos. Trans. London, LXII. p. 423, (1772.) 
<¢ Falco islandicus,”? Aud. Orn. Biog., il., p. 552. 
Hab. Northern regions, Greenland, Labrador. 
3. Genus Hypotriorcuis, Boie. 
i. Hypotriorchis columbarius, (Linn.) _Wilson. Am. Orn., il., pl. 15, fig. 3. 
Aud. B. of Am., pl. 75, 92. 
Falco columbarius, Linn. Syst. Nat., i., p. 128, (1766). 
Hab. Throughout North America. 
4. Genus TiInNuNcULUS. 
1. Tinnunculus sparverius, (Linn.) | 
Falco sparverius, Linn. Syst. Nat., i., p. 128, (1766). 
Hab. The entire continent of America. 
II. Subfamily ACCIPITRINZ. 
1. Genus Astur, Lacepede. 
1. Astur atricapillus, (Wilson.) Wilson Am. Orn., vi., pl. 52, fig. 3, Aud. 
B. of Am., pl. 141. 
Falco atricapillus, Wilson. Am. Orn., vi., p. 80, (1812). 
Hab. Northern and Eastern North America. 
2. Genus Accrrirer, Brisson. 
1. Accipiter Cooperii, (Bonaparte.) Bonap. Am. Orn., ii., pl. 1. Aud. B- 
of Am., pl. 36, 141. 
Falco Cooperii, Bonap. Am. Orn. ii., p. 1, (1828). 
Hab. Throughout North America. 
2. Accipiter mexicanus, Swainson. Faun. Bor. Am. Birds, p. 45, (1831). 
Hab. California, Mexico. 
3. Accipiter fuscus, (Gmelin.) Wilson. Am. Orn., v., pl. 45, fig. 1. Aud. B. 
of Am., pl. 374. 
Falco fuscus, Gm. Syst. Nat., i., p. 280, (1788). 
Hab. Throughout North America. 
