37 



BIRDS OF THE BRITISH ISLES. 



<Slaucou0 (Bull. 



THE Glaucous Gull (Larus glaucus, Fabricius) is an irre- 

 gular straggling winter migrant to the British Isles, and is 

 found inhabiting the Northern Nearctic and Palearctic 

 Regions. The adult does not differ to any great extent 

 from the Iceland Gull, but it is larger in size, and the pro- 

 portionably shorter wings only reach a little beyond the 

 tail, whilst those of the Iceland Gull extend considerably 

 beyond the end of the tail-feathers. Length, about thirty- 

 two inches. 



