TUFTED DUCK. 



587 



on the breast and a considerable number near the base of the bill. Males 

 may be distinguished from females by being somewhat darker in colour on 

 the upper parts, somewhat whiter on the belly, and with more indication 

 of a crest. Males in first nuptial dress have white margins to the black 

 feathers of the breast, little or no green gloss on the head and neck, shorter 

 crests, vermiculated flanks, and a small white spot on the chin. Males 

 in moulting-plumage are intermediate in colour between males in first 

 plumage and males in first nuptial plumage. Young in down are dark 

 brown, shading into nearly white on the belly. 



