Young. 



520 NATATORES. CATARACTES. SKUA. 



webs of the quill-feathers white ; the tips and outer 

 webs black. Wings, when closed, reaching upwards of 

 an inch beyond the tail. Tail-feathers having part of 

 their shafts and the basal half of their inner webs white ; 

 the rest black ; and the two middle ones exceeding the 

 rest about three-quarters of an inch in length, but pre- 

 serving their full breadth, and rounded at the ends. As 

 the bird advances in age the under parts become whiter, 

 and the subulated feathers upon the head and neck make 

 their appearance. 



ARCTIC SKUA. 



CATARACTES PARASITICUS, Flem* 

 PLATE CI. AND CI *. 



Cataractes parasiticus, Flem. Br. Anim. 1. 138. No. 222. 



Lestris parasiticus, Temm. Man. d'Ornith. 2. 796. Faun. Amer. Boreal. 



2. 430. No. 195 Sabine, Mem. Birds of Greenland, 551. No. 24. 



Stercorarius Cepphus, Steph. Shaw's Zool. 13. 211. pi. 23. 



Stercorarius longicaudus, Briss. Orn. 6. 155. 



Larus parasiticus, Linn. Syst. 1. 226. 10. Gmel. Syst. 1. 601. Lath. Ind. 



Orn. 2. 819. sp. 15. 



Le Labbe a longue queue, Buff. Ois. 8. 445 Id. PL Enl. 962. 

 Stercoraire parasite, ou Labbe, Temm. Man. d'Orn. 2. 796. 

 Arctic Bird, Edward's Glean. 148 and 149. 

 Arctic Gull, Penn. Br. Zool. 2. 533. No. 245. pi. 87. Arct. Zool. No. 459. 



Lath. Syn. 6. 389. 10. t. 99 Mont. Orn. Diet, and Sup. Lewirfs 



Br. Birds, 6. pi. 20T Bewick's Br. Birds, ed. 1826, p. t. 232 Flem. 



Br. Anim. 1. 138. No. 222. 

 Arctic Jager, Shaw's Zool. 13. 211. pi. 23 Faun. Amer. Boreal. 2. 430. 



No. 195. 



Larus crepidatus, Gmel. Syst. 1. 612 Lath. Ind. Orn. 2. 819. sp. 14. 



Lestris crepidatus, Temm. Man. d'Orn. 1. ed. 515. 



Cataracta Cepphus, Brunn. 36. No. 126 Rail Syn. 129. 11. 



Cepphus, Dr Lyons in Trans. Phil. Soc. 42. 137. 



Le Labbe, ou Stercoraire, Buff. Ois. 8. 441. t. 34 Id. PL Enl. 991. 



Labbe a courte queue, Cuv. Ileg. Anim. 1. 520. 



Bkck-toed Gull, Penn. Br. ZooL 2. 532. No. 224. pi. 86 Arct. Zool. 



2. No. 460. Lath. Syn. 6. 387. 15 Id. Sup. 268. Bewick's Br. Birds. 



ed. 1826, p. t. 235 Mont. Orn. Diet, and Sup. 



PROVINCIAL Teazer, Dung Hunter, Scull, Boatswain, Dung 

 Bird, Faskiddar, Dirten - Allen, Scoute-Allen, Badock, Allan, 

 Skui. 



