590 PATAGONIAN EXPEDITIONS: ZOOLOGY. 



Geographical Range. — The greater portions of both the Eastern and 

 Western Hemispheres ; parts of Australia ; the genus Circus however is 

 not represented throughout the area defined, but seems local and there 

 are wide gaps and breaks in the continuity of distribution. 



Circus cinereus Vieillot. 



Gavilan del campo ceniciento, Azara, Apunt. I. p. 145 (1802). 



Gavilan del campo pardo, Azara, t. c. p. 151. 



CircHS cinereus, Vieill. N. Diet. d'Hist. Nat. IV. p. 454 (1816: ex Azara, 

 p. 145); D'Orb. Voy. Amer. Mdrid. Ois. p. no (1835: Patagonia 

 and Falkland Islands); Darw. Voy. Beagle, Birds, p. 30 (1841 : 

 Falkland Islands); Fraser, P. Z. S. 1843, P- 109 (Chili); Hartl. Ind. 

 Azara, p. 3 (1847); Des Murs in Gay's Hist. Chil. Zool. I. p. 227 

 (1847); Gould, P. Z. S. 1859, p. 94 (Falkland Islands); Scl. P. Z. 

 S. i860, p. 384 (loc. cit.) ; Abbott, Ibis, 1861, p. 152 (East Falkland 

 Islands, resident) ; Burm. Reis. La Plata, II. p. 439 (1861 : Rosario) ; 

 Schl. Mus. Pays Bas, II. Circi, p. 5 (1862: Falkland Islands); Pelz. 

 Reis. Novara, Vog. p. 13 (1865: Chili) ; Scl. & Salv. P. Z. S. 1868, 

 p. 143 (Conchitas); Phil. «& Landb. Cat. Av. Chil. p. 5 (1868); 

 Huds. P. Z. S. 1872, p. 536 (Rio Negro); Scl. & Salv. Nomencl. 

 Av. Neotr. p. ii8 (1873); Lee, Ibis, 1873, p. 131 (Arg. Rep.); 

 Sharpe, Cat. B. Brit. Mus. I. p. 56 (1874: Straits of Magellan); 

 Durnf Ibis, 1877, p. 38 (Chupat Valley), p. 187 (Buenos Aires, 

 occasional); id. Ibis, 1878, p. 397 (Central Patagonia, breeds in 

 Oct.); Gibson, Ibis, 1879, p. 411 (Cape San Antonio, not observed 

 breeding) ; Durnf Ibis, 1880, p. 423 (Tucuman, June) ; Sharpe, 

 Cat. P. Z. S. 1 88 1, p. 10 (Coquimbo, June) ; Doering, Expl. al 

 Rio Negro, Zool. p. 49 (1882: Rio Negro & Rio Colorado); Salv. 

 P. Z. S. 1883, P- 426 (Coquimbo); Gurney, List Diurn. B. Prey, 

 p. 20 (1884); Barrows, Auk, I. p. 30 (1884: Bahia Blanca, Feb.; 

 Ventana.; Carhue) ; Burm. Ann. Mus. Nac. Buenos Aires, III, part 

 X. p. 241 (1888: Patagonia), part XI. p. 316 (1890: Rio Chico del 

 Chubut) ; Withington, Ibis, 1888, p. 469 (Lomas de Zamora, common, 

 but not observed breeding) ; Scl. & Huds. Argent. Orn. II. p. 57 

 (1889: Patagonia; Falkland Islands); Holland. Ibis, 1890, p. 425 

 Estancia Espartilla, Oust. Miss. Scient. Cap Horn, Oiseaux, pp. 19, 

 324 (1891 : Punta Arenas, Feb.); Frenzel, J. f. O. 1891, p. 114 



