92 DUCKS, GEESE AND SWANS OF NORTH AMERICA. 



The Whistling Swan is common in winter on the Atlantic coast about the 

 Carolinas and Virginia, and occasionally wanders as far south as Florida and 

 the Gulf of Mexico. It breeds in the for north, the nest being composed of 

 leaves and grass and placed on the ground. The eggs, which are from three 

 to five, are dull white. 



OLOR BUCCINATOR {Rich). 



Trumpeter Swan. 



Adult : General plumage, white ; bare loral skin in front of eye, not yellow ; bill and feet, 

 black; the distance from the front angle of the eye to the hack edge of the nostril is equal or less 

 than the distance from the hack edge of the nostril to the end of the hill. 



Immature birds are ashy gray, often tinged with brownish on the head and necli ; bill and 

 feet, dull yellowish brown, tinged with olive. 



Habitat: "Chiefly the interior of North America, from the Gulf to the fur countries, 

 breeding from Iowa and the Dakotas northward, west to the Pacific coast ; rare or casual on 

 the Atlantic." (A. O. U.) 



The eggs of the Trumpeter Swan are soiled white, and usually from three 

 to six in number. The nest, which is placed on the ground, is composed of 

 grass lined with down. 



The Whooping Swan, Olor cygnus {Linn.), is occasionally found in Green- 

 land, but has not been recorded elsewhere in North America. 



It is described as having ihe base of the mandible and the entire bare loral 

 skin yellow. 



