600 LARID^E. 



the Polar Seas ; occupying with their nests the pinnacles of 

 rocks and the projecting ledges of cliffs on the sea shore. 

 The egg is of a stone colour, spotted with ash-grey and 

 two shades of reddish brown, and measures two inches nine 

 lines in length, by one inch and eleven lines in breadth. 

 One of these Gulls disgorged a Little Auk when it was 

 struck by the shot, and proved on dissection to have a 

 second in its stomach. Captain James C. Ross mentions, 

 that this species was found at Felix Harbour, and along 

 the line of the western shore of Prince Regenfs Inlet ; and 

 Mr. Audubon includes it in his Ornithology of the United 

 States and North America. 



The adult bird has the bill yellowish-white, the inferior 

 angle of the lower mandible reddish-orange ; irides straw 

 yellow ; all the plumage nearly white, but with* a tinge of 

 skimmed-milk blue over the back and wing-coverts ; prima- 

 ries white, reaching but little, if any, beyond the end of the 

 tail ; legs and feet flesh-colour. 



Old males have been taken measuring, from the point of 

 the beak to the end of the tail-feathers, thirty two and 

 even thirty- three inches ; the wing from the carpal joint 

 to the end of the longest quill-feather nineteen inches. 

 In winter the head and neck are slightly streaked with 

 ash-grey. 



The bird killed by Mr. Edwards on the Severn, and 

 which that gentlemen very kindly sent up for my use in 

 this work, measured in its whole length twenty-seven 

 inches and a half; the wing seventeen inches and three- 

 quarters. 



The young Glaucous Gull obtained in the London mar- 

 ket has the bill pale brown at the base, the point dark 

 horn colour ; the irides dark ; head, neck, back, and wing- 

 coverts, a mixture of pale ash-brown and dull white ; 



