84 CHECK-LIST OF NORTH AMERICAN BIRDS. 



Range.— Eastern North America. Has been found breeding at Whale 

 Sound, north Greenland, and EUesmere Land; full breeding range not known; 

 winters from southern Illinois, Chesapeake Bay, and Massachusetts (rarely) 

 south to Louisiana, Florida, and West Indies to Porto Rico; in migration 

 rarely west to Colorado and east to New England and Newfoundland. 



Chen cserulSscens (Linn^us). Blue Goose. [169.1.] 



Anas ccervlescens Linnjsus, Syst. Nat., ed. 10, I, 1758, 124. (Hudson 

 Bay.) 



Range. — Eastern North America. Breeding range unloiown, 

 but probably interior of northern Ungava; winters from Nebraska 

 and southern Illinois south to coasts of Texas and Louisiana; rare 

 or casual in migration in California, and from New Hampshire to 

 Florida, Cuba, and the Bahamas. 



Subgenus EXANTHEMOPS Elliot. 



Exanthemops Elliot, New & Unfig. Birds N. A., II, Pt. ix, 1868, pi. 

 xliv and text. Type, by orig. desig., Anser rossii Cassin. 



Chen r6ssi (Cassin). Ross's Goose. [170.] 



Anser rossii Cassin, Proc. Acad. Nat. Sci. Phila., 1861, 73. (Great 

 Slave Lake.) 



Range. — Western North America. Breeding range unknown, but 

 probably north of Mackenzie; winters in California; in migration 

 occurs from Kent Peninsula and Anderson River, Mackenzie, south to 

 Manitoba and Oregon; accidental in British Columbia, Colorado, 

 Louisiana, and Chihuahua. 



Genus ANSER Brisson. 



Anser Brisson, Om., VI, 1760, 261. Type, by tautonymy, Anser gyl- 

 vestris Brisson = Anas anser Linn^us. 



Anser ^Ibifrons (Scopoli). 



Range. — Arctic and subarctic parts of the Northern Hemisphere, 

 migrating south in winter to the warmer temperate latitudes. 



