1914 BIRDS OF ARIZONA 13 



25. Dafila acuta (Linnaeus). 



Pintail. 



Status — Has been reported as a migrant from various parts of the state. It 

 was found on Mormon Lake, in the Mogollon Mountains, in May, by Mearns. 

 Seen on the San Pedro River in February, .-^o is probably a winter visitant in 

 southern Arizona (Willard, 1910c, p. no). 



26. Marila americana (Eyton). 



Redhead. 



Synonym — Aythya americana. 



Status — The only record of the occurrence of this species in Arizona is that 

 by Scott (1886, p. 384), who reported it as occurring in winter in the vicinity 

 of Tucson and on the San Pedro River. 



27. Marila valisineria ( Wilson ) . 



Canvas-back, 



Syndnym — Aythya zvIHsneria. 



Status — Scott (1886, p. 384) records a small flock seen on the San Pedro 

 River, January 28, 1886, while Coues (1892a, p. 198) reports it as occurring hi 

 large numbers on the Verde River near Fort Whipple, in winter. These are the 

 onl)^ records for the state. 



28. Marila marila (Linnaeus). 



Greater Scaup Duck. 



Synonym — Aythya marila ncarctica. 



Status — Known only from the record by Scott (1886, p. 384), who speaks of 

 it as ''rathfer common on the San Pedro in winter." 



29. Marila affinis (Eyton). 



Lesskr Scaup Duck. 



Synonym — Aythya affinis. 



Status — A record by Scott (1886, p. 384) 01 '\i few seen on the San Pedro 

 during late January." Common near Tucson in March, 1912 ( Sloanaker, 1913, 

 p. 195). Observed on the Colorado River, near Ehrenberg, March 24, and at 

 Cibola, April 4, 1910 ( Mus. Vert. ZooL). 



30. Clangula clangula americana Bonaparte. 



American Golden-eye. 



Status — Only one record, that of two specimens taken near Tucson, April i 

 and February i, respectively ( Sloanakear, 1912, p. 154). 



31. . Charitonetta albeola (Linnaeus). 



BUI^FLE-HEAD. 



Synonyms — Clangula albeola; Bucephala albeola, 

 ' Status — While apparently not common, this species has been reported in 

 winter from various scattered localities in alP parts of the state (Tucson, San 

 Pedro River, Bill Wilhams River, etc.). 



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