4 HISTORY OF 



gether of a pure white, with the exception of the quill feathers, 

 which are black ; legs, feet, and base of the bill, of the same 

 colour as the cere ; point of the bill, black. 



The adults of both sexes are similar, both in their colouring 

 and plumage. The young of the year are of a deep brown, 

 slightly spotted with lighter brown and white, and do not attain 

 their adult plumage for two or three years. 



