156 GULL. 



17. -IVORY GULL. 



Larus eburneus, Ind. Orm ii. p. 816. Gm. Lin. i. 596. Phipp's Voy. p. 187. Lin. 



Trans, xii. 548. Tern. Man. 498. Id. Ed. 2d. 769. Ross's Voy. App. liv. Parr. 



^p^j. p. cciv. 

 Larus niveus, Act. Holm. iv. p. 100. 2. Mart. Spitz, t. L. f. A. 

 Larus candidus, Fn. groenl. No. 67. Muller, p. 8. 

 Rathsher, i.e. Senator, Kaii, 126. 1. Mart. Spitz, p. 77. Adel. 359. 415. t. 13. f.4. 



Salem. Om. 3S2. 

 La Mouette blanche, Buf. viii. 422. PL enl. 994. 

 Ivory Gull, Gen. Syn. vi. 377. Jrcf. Zoo\. ii. No. 457. 



LENGTH sixteen inches; breadth thirty-seven. Bill two inches 

 long, lead-coloured, with a pale tip; orbits saffron ; the irides dark 

 brown ; plumage wholly white; the wings very long, exceeding the 

 tail, and even the legs, when at length ; the legs lead-colour, claws 

 black. In young birds the bill is black; the plumage marked with 

 oblong black spots, especially on the back and wings. 



This species seems to prefer the most northern situations, inhabiting 

 both Coasts of Greenland, and met with far out at sea, very seldom 

 approaching the land, except in breeding time; but is then sufficiently 

 tame, so as to be shot without difficulty ; whereas at sea it is very 

 shy. Frequent in the Frozen Sea, between Asia and America, and 

 off Cape Denbigh, a little to the south of Behring's Straights ; met 

 with by our late voyagers at Aoonalaschka, and has a rough and 

 loud kind of scream ; further than the above, the manners are not 

 known ; is seen at Spitsbergen, and the most northern coasts ; 

 abundant in Baffin's Bay, in company with the Fulmar. 



18— HUDSONIAN GULL. 



LENGTH twenty-seven inches and a half, breadth five feet. 

 Bill and legs flesh-colour; irides straw; the plumage wholly of a 



