The Glaucous Gull 



England. Its breeding range is circumpolar, its nearest 

 breeding-place to our shores being in Iceland. 



The mantle and wings are pearl-grey, with white tips to 



the secondaries and outermost webs of the quills. Orbital 



ring vermilion. Legs pink. Immature birds are whitish 



uniformly and thickly mottled with ash grey. Length 

 29 in. ; wing 1 8 in. 



THE ICELAND GULL 



Larus leucopterus, Faber 



This species is very closely allied in plumage and habits 

 to the preceding. It is a winter visitor to the shores of 

 Scotland, only coming south in severe weather. It breeds 

 on Jan Mayen Islands and Greenland, and is only a winter 

 visitor to the island whose name it bears. 



Except in size it is almost a counterpart of the Glaucous 

 Gull, but the orbital ring is flesh-coloured, and the legs 

 yellowish. Length 22 in. ; wing 1 6 in. 



THE KITTIWAKE GULL 



Rissa tridactyla (Linnceus) 



With the Kittiwake we come to a species of Gull which 

 differs in its general build from those we have hitherto 

 dealt with. It is rather shorter in the leg, which gives it a 



3 6 9 47 



