436 



COLYMBIDJE. 



has the beak of a brownish-white horn colour ; irides red- 

 dish-brown; head, back of the neck, and all the upper 

 surface of the body, greyish-black ; all the feathers on the 

 back broadly edged with ash grey ; chin, neck in front, 

 and all the under surface of the body dull white ; outer 

 surface of the legs and t^es dark greenish-brown ; edges 

 and inner surface lighter greenish-brown ; the whole length 

 thirty- one inches ; of the wing thirteen inches and a half. 



Mr. Audubon says " the young are covered at birth with 

 a kind of black stiff down, and in a day or two after are 

 led to the water by their mother." 



The figure below represents the form of the foot in this 

 genus of birds. 



