166 GULL. 



In the Transactions of the Wernerian Society, Dr. Arthur Ed- 

 mondston thinks there may probably be two kinds of Arctic Gull, 

 which appear in the Shetland Isles ; the more common, with the 

 breast and belly mouse-colour; and the other with the breast and 

 belly pure white : each sort keeps together, but the white is the 

 larger and heavier bird, though less bold than the other; the Doctor 

 supposes them to be different species. 



25— BLACK-TOED GULL 



Larus crepidatus, Ind.Orn.'n. 819. Gm. Lin.\. 602. Hawkesiv. Voy.\. p. 15. Lin. 



Trans, xii. 551. (Lestris parasiticus, immature.) 

 Lestris crepidatus, Tern. Man. 515. Id. Ed. 2d. 799. 

 Catarracta Cepphus, Brun. p. 36. No. 126. t. in ditto. Muller, p. 21. Phil. Trans. 



lii. p. 135. Ruii, 129. 11. WU1.2&7. Id. Engl. 351. pi. 67. 

 L'Abbe, on Stercoraire, Bvf. viii. 441. pi. 31. Pl.enl. 991. 

 Mouette a Pieds noirs, Bvf. viii. 439. 3°. 

 Black-toed Gull, Gen. Syn.x\. 387. Id. Sup. 268. Br. Zool. ii. No. 244. pi. 86. Id. 



1812. ii. 178. pi. 31. f. 2. Arct. Zool. ii. No. 460. Lewin, vi. pi. 216. Bewick, 



ii. pi. p. 236. Orn. Diet. Sf Supp. 



THIS bird is fifteen inches long, thirty-nine broad, and weighs 

 eleven ounces. The bill is one inch and a half long, not unlike 

 that of the Arctic Species, but more slender, and less hooked ; head 

 and neck dirty white, sides of the last marked with dusky; breast 

 and belly white, crossed with numerous dusky and yellowish lines; 

 sides and vent barred transversely black and white; back, scapulars, 

 wing coverts, and tail, black, edged with white, or pale rust-colour ; 

 shafts and tips of the quills white, the exterior web, and upper half 

 of the interior, black, but the lower part of the latter white; the tail 

 black, tipped with white ; the two middle feathers near an inch longer 

 than the others, the shafts white ; the exterior webs of the outmost 

 spotted with rust; the legs bluish lead-colour; lower part of the toes 

 and webs black. 



