^2 DUCKS, GEESE AND SWANS OF NORTH AMERICA. 



The habits of this species are but little known, and for many years it was 



Clieti caM'uk'^ccnf?. 



supposed to be tiie young of the Suow Goose. The nest and eggs are 

 unknown. 



s of this littli^ ft- 



CHEN ROSSII (Cassin.). 

 Ross' Goose. 



AiImU : General plumag-e, pure white ; exposed portion of pri- 

 maries, hhick ; axillars, wliite ; basal portion of upper mandible 

 wrinkled and with warty-like excrescences. Immature birds 

 have the head, neck, and upper parts, pale graj' ; some of the 

 feathers of tlio back and wing <'Overts, edged with white; 

 rump and upjier tail coverts, tail and under parts, white. 



Wing, 14..50; tail, .5; tarsus, 2.25; cuhiien, 2.15; bill 

 (nostril to tip), 2.85; bill (angle of moutli to tip), 1.70. 



Hahitat: "Arctic America in summer. Pacific coast to 

 Southern California and east to Montana in winter." (A. O. U.) 

 A western species not found in Eastern United St.ates. The 

 oose are unknown. 



