414 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



1893, 522 (Greytown, Nicaragua). — Beristain and Laurencio, Mem. y 

 Rev. Soc. Cient. "Antonio Alzate," vii, 1894, 225 (Veracruz; rare). — Iherinq, 

 Rev. Mus. Paulista, iii, 1899, 354 (Piracicaba, Sao Paulo, s. Brazil) ; iv, 1900, 

 162 (Cantagallo and Novo Fribourgo, Sao Paulo). — Bangs, Proc. New 

 England Zool. Club, ii, 1900, 15 (Loma del Leon, Panama). — Salvin and 

 GoDMAN, Biol. Centr.-Amer., Aves, iii, 1900, 85 (Mazatldn and Presidio 

 de Mazatldn, Sinaloa; Tlacotalpan, Veracruz; Huamachal, Santa Ana Mixtdn, 

 Duenas, and Lake Pet6n, Guatemala; Ometepe and Gre3'town, Nicaragua; 

 La Palma de Nicoya, Las Trojas, and Liberia, Costa Rica; Panama; Rfo 

 Truando, Colombia; Guiana; Amazonia). — Berlepsch, and Hartert, Nov. 

 Zool., ix, 1902, 113 (Caicara and Quiribana de Caicara, Venezuela: colors of 

 unfeathered parts). — Hellmatr, Abh. Bayer. Akad. Wiss., Kl. II, xxii, 

 pt. 3, 1905 (1906), 568 (crit. as to Aquila milvoides Spix) ; Nov. Zool., xiv, 

 1907, 29 (Urucurituba, Brazil), 38 (Obidos, Brazil), 406 (Humaytha, Rio 

 Madeira, Brazil). — Hagmann, Journ. fiir Orn., 1906, 108 (Mexiana Island, 

 Brazil; descr. eggs); Zool. Jahrb., 1907, 21 (Mexiana Island). — Ihering and 

 Ihering, a v. Brazil, 1907, 91 (Sao Paulo, Rio de Janeiro, Matto Grosso, Rio 

 Branco, Pard, and Amazonia). — Beebe, Zoologica, i, 1909, 80 (La Brea, ne. 

 Venezuela; habits). — Carriker, Ann. Carnegie Mus., vi, 1910, 460 (Gulf of 

 Nicoya and Guanacaste, Costa Rica). — Reiser, Denkw. Mat. -Nat. Akad. 

 Wiss. Wien, 1910, 90 (Lagoa Boquiera, Paranagua, etc., ne. Brazil). — 

 Brabotjrne and Chubb, Birds South Amer., i, 1912, 68 (Paraguay; Brazil; 

 Peru; Guiana). — Reichenow, Die Vogel, i, 1913, 389. — Cherrie, Bull. 

 Brooklyn Inst. Sci., ii, 1916, 342 (middle Orinoco region, Venezuela; fresh 

 colors of unfeathered parts). — Chubb, Birds Brit. Guiana, i, 1916, 243 

 (habits). — Chapman, Bull. Amer. Mus. Nat. Hist., xxxvi, 1917, 247 (Calaman 

 and Rfo Atrato, nw. Colombia). — Bangs and Penard, Bull. Mus. Comp. 

 Zool., Ixii, 1918, 36 (Paramaribo, Surinam; crit.). — Stone, Proc. Acad. Nat. 

 Sci. Philadelphia, 1918, 249 (Panama Canal Zone); Ixxx, 1928, 154 (Pard, 

 Brazil). — Swann, Synopt. List Accip., pt. 2, 1919, 57. — Hei.lmayr, Nov. 

 Zool., xxviii, 1921, 185. — Todd and Carriker, Ann. Carnegie Mus., xiv, 

 1922, 155 (Bonda, Mamatoco, and Trojas de Cataca, Santa Marta, Colombia). 

 — Young, Ibis, 1929, 9 (coast of British Guiana; habits; food). — Darlington, 

 Bull. Mus. Comp. Zool., Ixxi, 1931, 367 (near Ci6naga Sevillano, Rio Frio, 

 Colombia). — Griscom, Bull. Amer. Mus. Nat. Hist., Ixiv, 1932, 156 (distri- 

 bution in Guatemala; Hacienda California; crit.). — Carriker and de 

 ScHAUENSEE, Proc. Acad. Nat. Sci., Philadelphia, Ixxxvii, 1935, 415 (Guate- 

 mala: Quirigua; spec). — Wetmore, Auk, Hi, 1935, 329, in text (Venezuela: 

 Los Tamarindos; pre-Columbian bones). — del Campo, Anal. Inst. Biol., xiii, 

 1942, 701 (Chiapas: Matastepec; spec). 

 Busarellus nigricnllis nigricolUs Swann, Synop. Accip., pt. 2, 1922, 95; Monogr. 

 Birds Prey, i, 1930, 446 (monogr.). — Sturgis, Field Book Birds Panama 

 Canal Zone, 1928, 135 (descr.; habits; Panama). — Hellmayr, Publ. Field 

 Mus. Nat. Hist., Zool. ser. xii, No. 18, 1929, 461 (Piauhy, Brazil).— Naum- 

 BURG, Bull. Amer. Mus. Nat. Hist., Ix, 1930, 109 (crit; distr.; Matto Grosso, 

 Brazil).— Peters, Check-list Birds of World, i, 1931, 245. — Stone and 

 Roberts, Proc. Acad. Nat. Sci. Philadelphia, Ixxxvi, 1934, 372 (Matto 

 Grosso, Brazil; spec; plum.; colors of soft parts). — Griscom, Bull. Mus. 

 Comp. Zool., Ixxviii, 1935, 300 (Panama; locally in swampy rivers; western 

 part and Dari6n). — Deicnan, Auk, liii, 1936, 188, in text (Honduras; spec; 

 descr.). — Pinto, Cat. Aves Brasil; Rev. Mus. Paulista, xxii, 1938, 78 (distr.). 

 — Sassi, Temminckia, iii, 1938, 301 (Costa Rica: Bebedero; spec). — 

 Dugand, Rev. Acad. Colomb., iii, 1940, 220 (common along Atlantic (Carib- 



