612 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



Subfamily Falconinae: True Falcons 



>Falconinae Swainson, Classif. Birds, ii, 1837, 212 (includes Harpagus, Baza, 

 and Aviceda). — Bonapakte, Consp. Gen. Av., i, 1850, 22 (includes Harpagus); 

 Rev. Mag. Zool., vi, 1854, 535 (includes Harpagus). — Kaup, in Jardine's Contr. 

 Orn., 1850, 51 (includes Harpagus). — Gray, Handlist, i, 1869, v, 18 (includes 

 Harpagus). — Sharpe, Cat. Birds Brit. Mus., i, 1874, xii, 350 (includes 

 Harpagus, Ictinia, Baza, and AviceAa). — Sundevall, Ofv. Svensk. Vet.- 

 Akad. Forh., 1874, 30 (includes Harpagus). — Barrows, Stand. Nat. Hist., 

 iv, 1884, 273, 308, in text (includes Harpagus). — Gurnet, List Diurn. Birds 

 Prey, 1884, xv, 91 (includes Harpagus). — Pycraft, Proc. Zool. Soc. London, 

 1902, 315 (includes Herpetotheres, Micrastur, Microhierax, Poliohierax) . 



= Falconinae Cassin, in Baird, Rep. Pacific R. R. Surv., ix, 1858, 7. — Carus, 

 Handb. Zool., i, 1868-75, 310. — Ridgway, Proc. Acad. Nat. Sci. Philadelphia, 

 1870, 139; Orn. Illinois, i, 1889, 426, 427.— Sclater and Salvin, Norn. Av. 

 Neotr., 1873, 121.— CotJES, Key North Amer. Birds, ed. 2, 1884, 520, 521.— 

 Salvin and Godman, Biol Centr.-Amer., Aves, iii, 1901, 113. — Oberholser, 

 Outl. Classif. North Amer. Birds, 1905, 2. — Knowlton, Birds of World, 



1909, 212, in text. — American Ornithologists' Union, Check-list, ed. 3, 



1910, 163.— SwANN, Synopt. Cat. Accip., pt. 4, 1920, 115.— Peters, Check- 

 list Birds of World, i, 1931, 284.— Wetmore, Smiths. Misc. Coll., xcix. No. 

 4, 1940, 40. 



>Falconidae d'Orbigny, Voy. Am6r. M^rid., iv, pt. 3, 1839, 113 (includes 



Harpagus) . 

 ■=Falconidae Lesson, ficho du Monde Savant, 9« ann., vil, s<$r. 2, No. 25, Apr. 2, 



1843, col. 588. 

 <Falcones normales Sundevall, Ofv. Svensk. Vet.-Akad. Forh., No. 2, 1874, 30 



(excludes Hieracidea and Harpa= Nesicrax) . 

 <FaIcones longipedes Sundevall, Ofv. Svensk. Vet.-Akad. Forh., No. 2, 1874, 



31 (includes only Hieracidea and Harpa = Nesierax) . 

 = Falcones Ridgway, Proc. Boston Soc. Nat. Hist., xvi, 1873, 44; Bull. U. S. 



Geol. and Geogr. Surv. Terr., ser. 2, Bull. 4, 1875, 4, 5, 6. 

 >Falcones Schleoel, Mus. Pays-Bas, ii, livr. i, 1862, 2 (includes Harpagus). 

 '=Falconeae Ridgway, Orn. Illinois, 1, 1889, 427. 



Compactly built, long- winged Falconiformes of medium to very 

 small size, with bill conspicuously toothed and notched, mandible 

 truncated at tip, orbits bare and overhung by a conspicuous arched 

 superciliary shield, nostril small, circular, with conspicuous central 

 bony tubercle, and not more than two outer primaries with inner web 

 emarginated, the emargination much posterior to middle portion. 



Maxillary tomium with a subterminal prominent toothlike process, 

 the mandibular tomium with a corresponding notch, the tip of the 

 mandible truncated, that of the maxilla distinctly hooked (uncinate) ; 

 superciliary process of lachrymal elongated, narrow, extending nearly 

 across orbit; posterior margin of metasternum truncate or subtruncate, 

 entire, preceded by a pair of oval foramina; spina interna sterni dis- 

 tinct, spiny; anterior angle of carina sterni projecting forward as far 

 as the level of the spina externa; foramen supracoracoideum absent; 

 one or two (only) outer primaries with inner webs emarginated, the 

 emargination much posterior to middle portion. Intrinsic muscles 



