100 

 GULL, COMMON SKUA. 



LESTEIS CATAKBACTES, Mont. 



This Skua, or Bonxie, as the Shetlanders call 

 him, is seldom met with on the coasts of England, 

 or even of Scotland. So far as the British terri- 

 tories are concerned, he appears to be limited 

 almost to the Shetland Islands, of three or four 

 hill tops of which he has taken special possession. 

 This undaunted species attacks with great fury any 

 person, however armed, that approaches his haunts 

 in the breeding season. His manner of walking, 

 swimming, and flying is similar to that of the other 

 Gulls, but more vigorous. He feeds on fishes, and 

 occasionally young birds, obtaining a great part of 

 his subsistence by harassing the larger Gulls until 

 he forces them to disgorge part of the contents of 

 their gullet. The nest is made among the grass ; 

 and the eggs, generally two, sometimes three in 

 number, are olive brown varied with dusky spots. 



GULL, GLAUCUS. 



LABUS GLAUCUS, Bew. 



This large species of Winged Gull is distributed 

 during summer over the Arctic seas; but as 

 winter approaches it advances into the temperate 

 regions. It is said to be common in Russia, and 



