572 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



MicrastuT melanoleucus (not Sparvius melanoleucus Vieillot) Ridgway, Proc. 

 Acad. Nat. Sci. Philadelphia, 1875, 482, part (monogr.; Mirador. Veracruz; 

 Tehuantepec City, Oaxaca; Mazatldn, Sinaloa; Colima and Sierra Madre, 

 Colima; Angostura, Rancho Redondo, Sipurio, Talamanca, and San Jos6, 

 Costa Rica; Panama Railway); Ibis, 187G, 3, part (diagnosis). — Boucard, 

 Proc. Zool. Soc. London, 1883, 457 (Yucatan). — Gurney, List Diurn. Birds 

 Prey, 1884, 24, part; Cat. Birds Prey, 1894, 19, part.— Zeled6n, Anal. Mus. 

 Nac. Costa Rica, i, 1887, 125 (Costa Rica). — Cherrie, Expl. Zool. Merid. 

 Costa Rica, 1893, 50 (Boruca, sw. Costa Rica). — Richmond, Proc. U. S. 

 Nat. Mus., xviii, 1896, 628 (Altamira, Tamaulipas). — Sharpe, Hand-list, i, 

 1899, 246, part.— Bangs, Proc. New England Zool. Club, ii, 1900, 15 (Loma 

 del Le6n, Panama). — Robinson and Richmond, Proc. U. S. Nat. Mus., xxiv, 

 1901, 168 (San Julidn, Venezuela). — Salvin and Godman, Biol. Centr.- 

 Amer., Aves, iii, 1901, 107 (Mazatldn and Presidio de Mazatldn, Sinaloa; 

 plains of Colima and Sierra Madre, Colima; Tehuantepec City and Santa 

 Efigenia, Oaxaca; Mirador, Veracruz; Altamira, Tamaulipas; Tonald, Chiapas; 

 Yucatan; Retalhuleu, Medio Monte, and Savana Grande, Guatemala; La 

 Libertad, El Salvador; San Joan del Sur, Nicaragua; San Jos^, Angostura, 

 Las Cruces de Candelaria, Rancho Redondo, Cerro de la Candelaria, Tala- 

 manca, Sipurio, Sibuhue, Irazii, and Bebedero, Costa Rica; Mina de Chorcha, 

 Lion Hill, and Laguna de Pita, Panama). — Miller, Bull. Amer. Mus. Nat. 

 Hist., xxi, 1905, 345 (Escuinapa, etc., Sinaloa; crit.). — Cole, Bull. Mus. 

 Comp. Zool., 1, 1906, 121 (Chichen Itzd, Yucatan). — Dearborn, Publ. 

 Field Mus. Nat. Hist. No. 125, 1907, 83 (San Jos6, Guatemala).— Penard 

 and Penard, Vog. Guyana, i, 1908, 380 (Dutch Guiana). — Phillips, Auk, 

 xxviii, 1911, 73 (Caballeros, s. Tamaulipas). — Reichenow, Die Vogel, i, 1913, 

 373. — Bangs, Auk, xxxii, 1915, 168 (type specimen of Falco percontator in 

 Mus. Comp. Zool.). — Stone, Proc. Acad. Nat. Sci. Philadelphia, 1918, 248 

 (Panama Canal Zone). — Sturgis, Field Book Birds Panama Canal Zone, 

 1928 (1929) (descr.; habits; Panama). 



Micrastur melanoleucus vielanoleucus Swann, Synopt. List Accip., pt. 1, 1919, 

 15, part; Synop. Accip., pt. 1, 1921, 24, part (s. Mexico to Colombia and 

 Venezuela). — Darlington, Bull. Mus. Comp. Zool., Ixxi, 1931, 368 (near 

 Rfo Frio, Magdalena, Colombia). 



Micrastur amaurus Gurney, Ibis, ser. 4, iii, 1879, 173, in text ("forest region of 

 Panama"; coll. Salvin and Godman); List Diurn. Birds Prey, 1884, 24; Cat. 

 Birds Prey, 1894, 19. — Reichenow and Schalow, Joum. fur Orn., 1881, 77 

 (reprint of original descr.). — Salvin and Godman, Biol. Centr.-Amer., Aves, 

 iii, 1901, 109, pi. 65 (Panama). 



MICRASTUR MIRANDOLLEI EXTIMUS Griscom and Grecnway 



Northern Mirandolle's Forest Falcon 



Adult (sexes alike). — Forehead, crown, occiput, nape, scapulars, 

 interscapulars, back, rump, upper tail coverts, upper wing coverts, 

 and remiges deep neutral gray with a slaty tinge, the top of head 

 somewhat darker; the inner webs of the remiges white for their basal 

 two-thii'ds or more, and crossed by three or four fahly broad dark 

 mouse gray bands and somewhat mottled with deep mouse gray on 

 the more distal portion of the whitish area; the fifth (from the out- 

 side) primary the longest, the first (outermost) the shortest; tail 



