WIGEON. 



195 



of brown, that in the centre of each feather the darkest in 

 colour, the paler brown on the margins tinged with rufous ; 

 quill and tail-feathers as in the male ; under surface of the 

 body nearly white. 



The young male birds of the year are, for a time, in 

 plumage resembling that of the females. 



The tube of the windpipe in the adult male Wigeon is 

 about six inches in length, and nearly equal in diameter 

 throughout ; the form of the bony enlargement and the de- 

 pending bronchial tubes as figured in the vignette below. 



o 2 



