336 



BRITISH BIRDS. 



of vermilion''^. According to Saunders the Iceland Gull has proportionally 

 longer wings than the Glaucous Gull. 



• This difFereuce iu the colour of the orbits is pointed out by Naumanu, and by Bau-d, 

 Brewer, and Bidgway, but is not mentioned by Saunders. Dresser describes the orbits of 

 the Glaucous Gull as vermilion, but colours them white ; and he appears to be incorrect 

 botli in his iigure and description of those of the Iceland Gull. Bespectiug the colour of 

 the legs and feet authorities appear to differ. In both species they are normally Hesh- 

 coloured; but Naumann says that very old birds of the Glaucous Gull have pale yellow 

 legs, whilst Baird, Brewer, and Bidgway say that very old examples of the Iceland Gull 

 often have orange-red legs. Dresser describes the legs of both species as flesh-coloured, 

 but figures those of the larger one yellow, and of the smaller pink. 



