Plate Y 



Fig.l. 



T'ig.S. 



^'s%' 



Fig. 3. 



Fig. 4 . 



HALF^ NATU RAL S I X El . 



COL-OF=(ECD i^F^CarvT rNj/\T~l_JF=iE: BV E:,W NIEL-SOIN. 



Tig. a. 



PACIFIC EIDER, male. 

 S o III ri tc ri a ^-nigra. 



Fig.l. 

 SPECTACLED EIDER, male, 

 ^rctonetta fischeri. 



Fig. 3 



WILLO^W PTARMIGAN", male in summer. 

 Lag op as Cagopiis. 



Fig. 5 



Fig. 4 . 

 AMERICAN SCOTER, male. 

 O ide ni ia a tn e ri c arta . 



SURF SCOTER male. 

 Oideinia vers p i c i II at a . 



