SCAUP DUCK 271 



NYROCA MARILA NEARCTICA (Stejnegeb) 



Aythya marila nearctica Stejneger, Bull. U.S. Nat. Mus., no. 29, p. 161, 1885. 



Fuligula marila nearctica Hartert, Kat. Vogelsammlung Mus. Ges. Frankfurt, p. 232, 1891. 



Fuligula marila Auct. (in part). 



Characters: There is very little to distinguish this from the true Scaup of Europe and very likely the 

 race should be suppressed. The size is apparently the same as in N. m. marila, but the American ex- 

 amples are supposed to have the barring of the upper side as dark as in the eastern form, N. m. mari- 

 loides, or even darker. In most cases the outer webs of the inner primaries are said to be darker in the 

 American than in the European birds but I must admit that in the few specimens which I have com- 

 pared the differences were either absent or very slight. 



Range: North America. 



