436 



Key to Plate No. 24 Plate No. 24 - 



WINTER PLUMAGES 



(A) AMERICAN EIDER, adult male. 



(B) AMERICAN EIDER, adult female. 



(C) PACIFIC EIDER, adult male. 



(D) PACIFIC EIDER, adult female. 



(E) NORTHERN EIDER, adult male head. 



(F) "Wing of male AMERICAN, NORTHERN and PACIFIC EIDERS. 



(G) Wing of female AMERICAN, NORTHERN and PACIFIC EIDERS. 



Chief distinguishing features of the MALES of these Eiders lie in the 

 conformation of the bill-processes and in the presence or lack of the black 

 V on the throat. See "Specimen Identification" and "Description" of 

 American Eider in the text. FEMALES. To separate the females of these 

 Eiders see "Specimen Identification" of female American Eider. 



Autumn Plumage, Plate No. 29. 

 Downy Young, Plate No. 34. 



Text: American Eider, page 302; Pacific Eider, page 312; Northern 

 Eider, page 300. 



