424 LARID.E. 



found also at Spitzbergen, Igloolik, Beliring's Straits, Cape 

 Garry, and Felix Harbour. Some Esquimaux also told Cap- 

 tain James C. Ross that it breeds in great numbers on the 

 low land west of Neityelle. 



Mr. Audubon mentions that he saw one flying over the 

 harbour of Halifax in Nova Scotia, and that they had been 

 seen in abundance on one occasion about one hundred miles 

 off Newfoundland. 



The following is Mr. Sabine's full description of the adult 

 bird in its summer-plumage : — The bill one inch long, the 

 base of both mandibles black, as far as the angular projection 

 of the lower mandible, the remainder yellow ; the inside of 

 the mouth bright vermilion. The irides dark, surrounded by 

 a naked circle of the same colour as the inside of the mouth ; 

 a small white speck beneath the eye scarcely perceptible. 

 The whole of the head and upper part of the neck a very 

 dark ash, or lead colour ; the remainder of the neck behind 

 and before, as well as the breast and belly, pure white ; a 

 narrow black collar surrounds the neck at the meeting of the 

 ash-colour and of the white. The back, scapulars, and wing- 

 coverts are ash-coloured, very much lighter than the head, but 

 darker than the corresponding parts of the Lams ridibundiis ; 

 the lower ends of the scapulars are tipped with white. The 

 first five primary quill-feathers with black shafts, the whole 

 outer webs of these black, the edge of their upper webs white 

 to within an inch and a half of the tips, the white sometimes 

 continued to the tip ; the tips of the first and second of these 

 quill-feathers in some white, in others black ; the tips of the 

 third, fourth, and fifth white, giving the wing when closed a 

 spotted appearance ; the sixth primary quill-feather with a 

 white shaft, having the web more or less black, but princi- 

 pally white, with sometimes a black spot near the end ; the 

 other primaries, the secondaries, and the tertials, white ; the 

 whole under parts of the wings wliitc. The Avings extend an 



