CUNE ATE -TAILED GULL. 561 



same dark colour witli the outer web of the first primary 

 itself. ; 



Mr. Charlesworth remarks that the fate of the specimen 

 of Larus Rossii, given to Mr. Sabine, is not known, and 

 that none of our public Museums have since been able to 

 obtain examples. I have, however, ascertained by inquiry 

 that the justly-celebrated Derby collection of Birds, now 

 in Liverpool, contains one example of Ross's Gull. 



The Yorkshire specimen, killed in February, had the 

 bill black ; eyes with a narrow line of dark feathers around 

 them ; head, whole of the neck and breast delicate rose 

 colour, mixed or clouded with French grey ; wings and 

 back French grey ; outer web of the first primary, only, 

 dark grey ; the shafts bluish-grey ; upper tail-coverts, 

 tail-feathers, and all the under surface of the body, 

 delicate rose colour ; under surface of the wings French 

 grey ; the shafts of the primaries white ; central pair of 

 tail-feathers the longest ; the remainder graduated, forming 

 a wedge-shaped tail ; legs, toes, and interdigital mem- 

 branes vermilion ; the claws black. 



The whole length of the bird is about fourteen inches ; 

 wing, from the anterior bend to the end of the first 

 primary, which is the longest, ten inches and a half; bill, 

 from the point to the feathers on the top, three-fourths of 

 an inch ; length of the tarsus one inch and a quarter. 



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