480 LA RIDE. 



tlic western shore of Prince Regent's Inlet ; and Mr. Audu- 

 bon 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 gentleman 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 market 

 has the bill pale brown at the base, the point dark horn co- 

 lour ; the irides dark ; head, neck, back, and wing coverts, a 

 mixture of pale ash-brown and dull white ; scapulars and 

 tertials transversely barred with pale brown, and tipped with 

 greyish white ; primaries and secondaries uniform pale yel- 

 lowish grey ; upper and under tail coverts dull white, barred 

 with pale brown ; tail-feathers uniform yellowish-brown ; 

 wings only reaching to the end of the tail ; chin, throat, 

 and breast dull white, mottled with pale brown, belly more 

 uniform in colour, and greyish-brown ; legs and feet livid 

 brown. The bird in general appearance is very similar to the 

 young of the Lesser White-Avinged Gull, figured at page 456, 

 and described at page 462, but much larger : the whole 

 length twenty six inches and a half, and the wing, from the 

 anterior joint to the end, seventeen inches and a half. 



