443 



It breeds plentifully in Greenland, and, as above stated, also in North America, laying its 

 eggs in a mere depi'ession scratched in the ground. Its eggs, of which I have several from 

 Greenland, resemble those of the Glaucous Gull, but are much less in size, being scarcely larger 

 than those of the Lesser Black-backed Gull. 



The specimen figured is an adult bird in full plumage, being the one above described. As 

 the immature bird differs only in size from that of the Glaucous Gull, I have not deemed it 

 necessary to figure it. 



In the preparation of the above article I have examined the following specimens: — 



E Mus. H. E. Dresser. 



a, (j ad., b,juv. Greenland (Moschler). 



E Mus. Howard Saunders, 

 a, b, c, ad., d, e,juv. Iceland {Proctor). 



