>66 



BRITISH BIRDS. 



The females may be distinguislied as follows : — 



A. Axillaries Avliite. 

 Rkd-crested Pociiaed. 



More or less white vermi- i Pochard 

 dilations on back and sea- } 

 pulars I Scaup ] 



Head and neck dull chest- j I 



nut, and imder tail-coverts ( White-eyed Pochard . . MVhite alar speculum. 



Tufted Duck J 



white 



B. Axillaries brown. 

 ^^~ i Buffel-headed Duck. ."^ 



Goldek-eye J; AVhite alar speculum. 



A white patch on the ear- ^ j3^.j,j,j^j^_j^j^^j^^jj p^.^^, 

 coverts 



Dark brown under tail-coverts.^ 



'Velvet Scoter ] J 



I [more. 



Scoter y Bare part of culmen li in. or 



( Frontal feathers extending 

 Surf-Scoter J 1 ^..^rly an inch beyond 



.Harlequin. ' feathers at side of bill. 



Long-tailed Duck. 





