BIRDS OF NORTH AND MIDDLE AMERICA 129 



Comp. ZooL, Ixix, 1929, 158 (Cana, Darien, Panama); Bull. Amer. Mus. 

 Nat. Hist., Ixiv, 1932, 163 (distr.; Guatemala); Bull. Mus. Comp. Zool., 

 Ixxii, 1932, 313 (Perm6, Obaldia, Panama); Auk, 1, 1933, 298 (Suretka Farm, 

 Talamanca, Costa Rica; spec); Bull. Mus. Comp. Zool., Ixxviii, 1935, 298 

 (Panama; common; partly migratory); Ibis, 1935, 810, in text (Guatemala; 

 Sierra de las Minas). — Young, Ibis, 1929, 13 (coast, Brit. Guiana; food). — 

 Gliesch, Egatea, xv, 1930, 283 (Rio Grande do Sid, Brazil). — Laubmann, 

 Wiss. Ergebn. Deutsch. Gran Chaco Exped., Vog., 1930, 98 (San Jos6, 

 Formosa, Argentina). — Natjmburg, Bull. Amer. Mus. Nat. Hist., ix, 1930, 

 113 (crit.; distr.; Matto Grosso, Brazil). — Darlington, Bull. Mus. Comp. 

 Zool., Ixxi, 1931, 365 (Rio Frio, Santa Marta; Magdalena, Colombia). — 

 Stone, Proc. Acad. Nat. Sci. Philadelphia, Ixxxiv, 1932, 299 (Honduras, 

 Ruatan Island). — Belcher and Smooker, Ibis, 1934, 589, in text (Trinidad; 

 hist.; eggs). — Roberts, Tropical Agr., xi. No. 4, 1934, 5 (Trinidad). — 

 Anonymous, El Hornero, vi, 1935, 184 (distr.). — Carriker and de Schauen- 

 see, Proc. Acad. Nat. Sci. Philadelphia, Ixxxvii, 1935, 416 (Guatemala; 

 Quirigua, spec). — van Tyne, Univ. Michigan Mus. Zool. Misc. Publ. 27, 

 1935, 18 (Pacomon, Flores, and Ixtinta Peten, Guatemala; spec). — Steullet 

 and Deautier, Obra Cincuentenario Mus. La Plata, i, 1936, 400 (syn.; 

 distr.; Argentine records). — Pinto, Rev. Mus. Paulista, xxii, 1933, 64 (distr.), 

 XXV, 1941, 12 (Matto Grosso; Chapada; spec). — Holmberg, EI Hornero, vii, 

 1939, 159 (Paraguay and Corrientes, Argentina). — Dugand, Rev. Acad, 

 Colomb., iii, 1940, 218 (not uncommon in Magdalena-Caribbean area, 

 Colombia). — Griscom and Greenway, Bull. Mus. Comp. Zool., Ixxxviii, 

 1941, 111 (Lower Amazonia; Pard., San Antonio do Prata, Peixe-Boi, Pjo 

 Tocantine, Arumatheua). — Sutton and Pettingill, Auk, lix, 1942, 8 

 (G6mez Farias region, sw. Tamaulipas; spec). — Brodkorb, Misc. Publ. 

 Univ. Michigan Mus. Zool., No. 56, 1943, 27 (Mexico; Tabasco; La Palma 

 and Tenosique; spec; meas.). — Gyldenstolpe, Kungl. Svenska Vet.-Akad. 

 Handl., xxiii. No. 1, 1945, 49 (n. Bolivia; spec). — Dugand and Borrero, 

 Caldasia, iv, 1946, 139 (Colombia; Leticia; spec). — Street, Auk, Ixiii, 1946, 

 371 (Trinidad).— Wetmore, Smiths. Misc. Coll., cvi, No. 1, 1946, 25 (San 

 Jos6 Island, Pearl Islands, Panama). — Skutch, Condor, xlix. 1947. 25 

 (nesting habits Ecuador). 



Nertus plumbeus Boie, Isis, 1828, 314. — Heine and Reichenow, Norn. Mus. 

 Hein. Orn., 1890, 263 (Brazil; Puerto Cabello, Venezuela). 



Buteo plujnbeus Cuvier, Regne Anim., ed. 2, i, 1829, 339. 



Ictinia (Poecilopieryx) plumbea Kaup, Mus. Senckenb., iii, Heft 3, 1845, 258 

 (South America). 



Ictinia pliunbeus Bonaparte, Consp. Gen. Av., i, 1850, 22.— Gray, Hand-list, i, 

 1869, 29, no. 267. 



Ictinea plumbea Thayer and Bangs, Bull. Mus. Comp. Zool., xlvi, 1905, 145 

 (San Miguel Island, Bay of Panama). — Austin, Bull. Mus. Comp. Zool., 

 Ixix, 1929, 373 (Mountain Cow; Augustine, Brit. Honduras). 



Ictinia plumbea plumbea Miller and Griscom, Amer. Mus. Nov., No. 25, Dec. 7, 

 1921, 5, 6 (Colombia to Ecuador, Venezuela, Trinidad, and Brazil). — Huber, 

 Proc. Acad. Nat. Sci., Philadelphia, Ixxxiv, 1932, 213 (ne. Nicaragua; 

 spec; colors of soft parts; habits). — Sutton, Wils. Bull., Ivi, 1944, 7 (crit.). 



Milvus cenchris Vieillot, Ois. Am6r. Sept., i, 1807, 38, pi. 10 bis. 



Buteo cenchris Cuvier, R^gne Anim., ed. 2, i, 1829, 337. 



Ictinia plumbea vagans Miller and Griscom, Amer. Mus. Novit., No. 25, 1921, 

 5, 6 (Pena Blanca, Nicaragua; coll. Amer. Mus. Nat. Hist.; range, Mexico 

 to Peru and Matto Grosso, Brazil). — Swann, Synop. Accip., pt. 4, 1922, 

 Errata et Add. (crit.; considered not valid). 



