EIDER DUCK. 



207 



namely, a pale brown, tinged with red, and varied with marks 

 of darker brown ; very similar to the female of the King- 

 Duck hereafter figured ; the quill and tail-feathers dull black. 

 The windpipe of the male Eider measures nine inches in 

 length, the tube uniform in size throughout ; the bony laby- 

 rinth and inferior tubes as represented below. 



