ORDER ANSERES. 65 



[B 575, C 486, R 600, C 705.] 



Geog. Dist. — Southern border of the United States (Louisiana, 



Texas, Nevada, CaHfornia), south to Mexico, reappearing in 



southern Brazil and Argentine RepubUc. Casual in North Carolina 

 and Missouri. 



Subfamily CYGNIN^. Swans. 

 Genus OLOR Wagler. 

 6^/<?r Wagler, Isis, 1832, 1234. Type, Anas cy gnus Linn. 

 [179.] Olor cygnus (Linn.). 



Whooping Swan. 



A7tas cygftus Linn. S. N. ed. 10, I. 1758, 122. 



Olor cygnus Bo-^AVKWY'E., Catal. Parzudaki, 1856, 15. 



[B— , C— , R 586, C 690.] 



Geog. Dist. — Europe and Asia ; occasional in southern Greenland. 



180. Olor columbianus (Ord). 



Whistling Swan. 



Anas columbianus Ord, in Guthrie's Geogr. 2d Am. ed. 1815, 



319- 



Olor columbianus Stejn. Pr. U. S. Nat. Mus. V. 1882, 210. 



[B 561 bis, C 477, R 588, C 689.] 



Geog. Dist. — The whole of North America, breeding far north. 

 Commander Islands, Kamchatka ; accidental in Scotland. 



181. Olor buccinator (Rich). 



Trumpeter Swan. 



Cygnus buccinator Rich, in Sw. & Rich. Fauna Bor. Am. XL 



1831, 464. 

 Olor buccinator V^AG'L¥.^^ Isis, 1832, 1234. 



[B 562, C 476, R 589, C 688.] 



Geog. Dist. — Chiefly the interior of North America, from the 

 Gulf coast to the Fur Countries, breeding from Iowa and the Dakotas 

 northward ; west to the Pacific coast ; rare or casual on the Atlantic. 



5 



