422 



ANATIDiE. 



The young bird of the year is notably smaller, and has 

 still less of the red-chestnut tint than the adult female ; 

 the back, wings, and neck, are of two shades of brown, the 

 edges of the feathers being of the lighter colour ; breast and 

 belly dull brownish-grey. 



In a nestling lent to the Editor by Mr. E. Bidwell, the 

 dark brown of the crown of the head, hind-neck and upper 

 parts, is very sharply defined against the clear yellowish- 

 buff of the cheeks, front of the neck, and breast ; flanks 

 dark brown. As a rule, nestlings of the Diving Ducks may 

 be distinguished from those of the Anatince by the absence 

 of light spots on the back ; but the young of the Ferruginous 

 Duck shows a distinct bar of lighter colour on the pinion 

 and the adjacent portion of the body. 



The trachea of the male is about six inches in length ; 

 the tube is small at both ends, but enlarged in the middle ; 

 the portion represented below is of the natural size. 



