BIRDS OF NORTH AND MIDDLE AMERICA 351 



Natal down. — Not known. 



Adult male.—Wmg 204-211 (208.3) ; tail 143-1 5G (148) ; culmen from 

 cere 18-19 (18.5); tarsus 60-63 (61); middle toe without claw 28.5- 

 31.5 (29.7 mm.) (3 specimens from Colombia and Panama). 



Adult female. —Whig 215-220 (217.5); tail 145-155 (148.2); culmen 

 from cere 19-20 (19.5); tarsus 60-63.5 (61.6); middle toe without claw 

 29.5-33 (31.7 mm.) (4 specimens from Colomxbia and Panama). 



Range. — Resident from the Caribbean slope of extreme eastern 

 Panama (Perme and Chucunaque River) to northern Colombia (Atrato 

 River) and the Santa Alarta district of Colombia (Bonda, Alamatoco, 

 Don Diego, Puerto Caimdn, Tierra Nueva, Minca, Fundacion, Dibulla, 

 etc.), possibly to northwestern Venezuela.'^" 



Type locality. — Santa Marta Mountains, Colombia. 



Asturina magnirostris (not Falco magnirostris Gmelin) Cassin, Proc. Acad. Nat. 

 Sci. Philadelphia, 1860, 132 (Turbo, nw. Colombia) .—Wyatt, Ibis, 1871, 

 382 (La Cruz, Colombia) ; Salvin and Godman, Ibis, 1880, 176 (Sierra Nevada 

 de Santa Marta, Santa Marta, and Minca, 2,000 feet, Colombia; habits). — 

 Berlepsch, Journ. fur Orn., 1884, 316 (Los Monos, Colombia). 



Rupornis magnirostris Bangs, Proc. Biol. Soc. Washington, xii, 1898, 132 (Santa 

 Marta, Colombia). — Stone, Proc. Acad. Nat. Sci. Philadelphia, 1899, 304 

 (Honda and Ibague, c. Colombia). — Allen, Bull. Amer. Mus. Nat. Hist., 

 xiii, 1900, 129 (Bonda, Santa Marta, Colombia) .^ — Robinson and Rich- 

 mond, Proc. U. S. Nat. Mus., xxiv, 1901, 168 (La Guaira and San Julidn, 

 Venezuela) . 



Rupornis magnirostris magnirostris Chapman, Bull. Amer. Mus. Nat. Hist., xxxvi, 

 1917, 243, part (Atrato River, Puerto Valdivia, Honda, and Rio Frio, Colom- 

 bia; crit.).— Swann, Auk, xxxviii, 1921, 362 (Valle, Culata, and Escorial, 

 Venezuela). 



Buteo magnirostris magnirostris Wetmore, Proc. LL S. Nat. Mus., Ixxxvii, 1939, 

 185, part (Valle, Merida, Maracay, Venezuela). 



Rupornis magnirostris insidiatrix Bangs and Penard, Bull. Mus. Comp. Zool., 

 Ixii, 1918, 36 (Sierra de Santa Marta, Colombia; coll. Mus. Comp. Zool.). — 

 Swann, Synopt. List Accip., pt. 3, 1920, 115; Synop. Accip., ed. 2, 1922, 92, 

 part (Colombia). — Todd and Carriker, Ann. Carnegie Mus., xiv, 1922, 154 

 (Bonda, Mamatoco, Don Diego, Puerto Caiman, Tierra Nueva, Minca, 

 Fundacion, and Dibulla, Santa Marta. Colombia; crit.). — Peters and 

 Griscom, Proc. New England Zool. CI., xi, 1929, 48 (crit.; chars.; distr.). — 

 Darlington, Bull. Mus. Comp. Zool., Ixxi, 1931, 367 (Rfo Frio near Santa 

 Marta, Magdelena, Colombia; habits). — Swann, Monogr. Birds Prey, i, 

 1930, 439 (monogr.).— Wetmore, Proc. U. S. Nat. Mus., Ixxxvii, 1939, 185, 

 in text.— DuGAND, Rev. Acad. Colomb., iii, 1940, 219 (Magdalena-Caribbean 

 area of Colombia; verj' common). 



Buteo magnirostris insidiatrix Peters, Check-list Birds of World, i, 1931, 238. — 

 Griscom, Bull. Mus. Comp. Zool., Ixxii, 1932, 314 (Perme, Panama); Ixxviii, 

 1935, 299 (Caribbean slope of Panama: Perme and Obaldia). 



^° The Panamanian specimens (10 seen) are not all typical of this race; some 

 are like topotypical insidiatrix, while others show some approach to petulans. 

 The race insidiatrix merges with magnirostris near Puerto Valdivia and Hondo, 

 Colombia, and with ecuadorensis near Rio Frio, Colombia). 



