590 BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



cc. With white tips to the feathers of the upperparts. 



M. chimango chimango, juv. (extralimital) 

 66. Upper surface dark brown with no ashy tinge. 



c. With no white tips to the feathers of the upperparts. 



M. chimango temucoensis, ad. (extraHmital)i° 

 cc. With white tips to the featliers of the ujjperparts. 



M. chimango temucoensis, juv. (extralinnital) 

 aa. Upper tail coverts barred with dark brown. 

 6. Upper tail coverts white, not buff. 



c. Underparts of body immaculate pale buff. 



M. chimachima chimachima, ad. (extralimital)" 



Isis, 1847, 356 (monogr.), 370, 375, 381; Sharpe, Cat. Birds Brit. Mus.,i, 1874, 41, 

 part (Maldonado, Uruguay; Port Desire, Argentina). — [Ihicter] chimango Kaup, 

 Isis, 1847, 370; in Jardine's Contr. Orn., 1850, 79. — Aquila pezopora Meyen, 

 Nova Act. Acad. Caes. Leop.-Carol. Nat. Curios, xvi, 1834, 62, pi. 6 (Chile; 

 "pezoporos" on plate). — Milvago pezoporos Gould, Zool. Voy. Beagle, pt. 3, 1841, 

 13. — Polyhorus hyperstictus "Gould" Sharpe, Cat. Birds Brit. Mus., i, 1874, 

 42 in text (Port Desire, Patagonia). 



1° Polyborus chimango d'Orbigny and Lafresnaye, Synop. Avium, 1839, 3 

 part (Chile) ; (?) Tschudi, m Wiegmann's Arch, fiir Naturg., x, pt. 1, 1844, 263 

 (Peru). — Polyborus chimango Schlegel, Mus. Pays-Bas, ii, No. 9, hvr. 2, 1863, 6, 

 part (monogr.). — Caracara chimango d'Orbigny, Voy. Am6r. Merid., Ois., 1835, 60, 

 part (s. Chile). — Milvago chimango Germain, Proc. Boston Soc. Nat. Hist., vii, 

 1860, 309 (Chile; nesting habits); Gurney, Descr. Cat. Rapt. Birds Norfolk and 

 Norwich Mus., pt. 1, 1864, 26, part (Chile); List Diurn. Birds Prey, 1884, 13, 

 part; Cat. Birds Prey, 1894, 18, part; Gray, Hand-list, i, 1869, 5, No. 30, part 

 (Chile); Ridgway, Proc. Boston Soc. Nat. Hist., 1873, 50 (Chile); U. S. Geol. 

 and Geogr. Surv. Terr., ser. 2, Bull. 6, 1876, 467, part (Santiago and Valdivia, 

 Chile); Sclater and Salvin, Nom. Av. Neotr., 1873, 122, part (Chile); Brabourne 

 and Chubb, Birds South Amer., i, 1912, 63, part (Chile). — (?) Milvago chimango 

 chimango Pafsler, Journ. fiir Orn., 1922, 448 (Coronal, Chile; habits; fresh colors 

 of unfeathered parts). — Milvago chimango temucoensis Sclater, Bull. Brit. Orn. 

 Club, xxxviii, No. 231, 1918, 43 (Temuco, Cautin, s. Chile; coll. Brit. Mus); 

 Swann, Synopt. List Accip., pt. 3, 1920, 115; Synop. Accip., pt. 1, 1921, 16; 

 Monogr. Birds Prey, i, 1925, 93 (monogr.) ; Peters, Check-list Birds of World, i, 

 1931, 279; Hellmayr, Birds Chile, 1932, 287 (Concepci6n south to Straits of 

 Magellan, Chile). 



" Polyborus chimachima Vieillot, Nouv. Diet. Hist. Nat., v. 1816, 259 

 (Paraguay; ex Chimachima Azara, Apunt., i, 1802, 50); d'Orbigny, Voy. 

 Am^r. Merid., iv, pt. 3, 1839, 63 (Bolivia, etc.; habits); d'Orbigny and Lafresnaye, 

 Synop. Avium, 1839, 3 (Paraguay; centr. Bolivia); Schlegel, Mus. Pays-Bas, ii. 

 No. 9, livr. 2, 1863, 5 (monogr.) ; No. 36, livr. 10, 1873, 137.— Haliaetus chimachima 

 Lesson, Trait6 d'Orn., 1831, 43. — Milvago chimachima Hartlaub, Syst. Index 

 Azara Apunt., 1847, 1; Gray, List Spec. Brit. Mus., pt. 1, ed. 2, 1848, 29 (Bahia, 

 Brazil); Hand-list, i, 1869, 5, No. 29; Bonaparte, Consp. Gen. Av., i, 1850, 12; 

 Rev. Mag. Zool., vi, 1854, 539; Strickland, Orn. Syn., i, 1855, 19; Pelzeln, Verb, 

 z.-b. Ges. Wien, 1862, 137; Reis. Novara, Vog., 1865, 6 (Brazil); Orn. Bras., Abth. 

 1, 1868, 2; Abth. 4, 1870, 392; Gurney, Descr. Cat. Rapt. Birds Norfolk and 

 Norwich Mus., pt. 1, 1864, 27, part (Bahia; habits); List Diurn. Birds Prey, 

 1884, 13, part; Cat. Birds Prey, 1894, 18, part; Sclater and Salvin, Proc. Zool. 

 Soc. London, 1866, 198 (upper Rio Ucayali, e. Peru); 1867, 589 (Mexiana Island 

 and Barra, Brazil); 1873, 302 (upper Rio Ucayali and Santa Cruz, e. Peru); 



