150 



AQUATIC FOWL. 



THE CEREOPSIS GOOSE 



Is a late introduction, from New Holland. It has bred in the 

 Great Park, at Windsor, and several specimens are now in pos- 

 session of the London Zoological Society, as well as at Knowsley, 

 the seat of the Earl of Derby. They are about the size of our 

 common goose, which it nearly resembles in its general form. A 

 broad patch on the top of the head is of a dull white, and the rest 

 of the plumage of a dingy gray, deeper on the upper than on the 

 under parts, having the extremity of each of the feathers of the 

 back margined with a lighter band, and most of the wing coverts 

 and secondary quill feathers marked with rounded, dusky spots ; 

 on the feathers of the back and shoulders, the spots are larger, 

 assume an angular or semilunar form, and approach more nearly 

 to the general colour of the plumage ; the quill feathers, both of 

 the wings and tail, are dusky black, throughout the greater part 



