530 Capt. Sabine's Memoir on the Birds of Greenland, ^c. 



state. These have hitherto been usually referred to as synonyms 

 of the F. Peregrinus. 



3. CoRvus Cor AX. Raven. 



C. Corax. Gmel.\.564. Lath. Ind. Orn.i. \50. Temm. 66. Fabr.GS,. Faun. Suec.lQ. 

 M'ull. no. 86. Briin. no. 8. — Raven. Lath. Syn. i. 367. &; Supp. 74. Jrct. Zool. ii. 

 <245. Br. Zool. i. 279- Mont. Diet. Sf Supp. fVil. Am. Orn. ix. 1 13. 



Killed at Hare Island, and seen on the west coast of Greenland 

 in lat. 75^". We did not notice a pied one, although such a vari- 

 ety is said to be common in arctic countries. 



4. Tetrao Lagopus. Ptarmigan. 

 T. Lagopus. Gmel. i. 749. Lath. Ind. Orn. ii. 639. Faun. Suec. 73. Briin. nos. 198 8; 



199. Fabr. 114. M'ull. jio. 2^3. Temm. 293.— Ptarmigan. Lath. Syn. iv. 741. 



Br. Zool. i. 359. Arct. Zool. ii. 315. Mont. Diet. (Sf Supp.—T. Rupestris. Gmel. i. 



751. Lath. Ind. Orn. ii. 64a— Rock Grous. Lath. Syn. Supp. 217. Arct. Zool. ii. 



312. 

 Killed June igth at Hare Island. The females were laying : 

 tliey had been abundant, but only a few were left on our arrival, 

 several whalers having anchored there before us, the crews of 

 which had destroyed them. Were I not quite satisfied of the iden- 

 tity of the species, the difference of the plumage of these birds 

 would seem to justify a persuasion that they are distinct ; but in 

 all essential characteristics they are the T. Lagopus. The pecu- 

 liarities which are to be noticed have escaped the attention even 

 of Fabricius ; who nevertheless describes these birds as seen du- 

 ring the summer. The period when they fell under my observa- 

 tion being that of their full breeding season, it must unquestion- 

 ably be allowed that thej' were in perfect summer plumage. The 

 male birds were wholly white, with the exception of the black 

 line from the bill to the eye, of the under tail-feathers, and a very 

 few scattered black feathers on the top of the head : even the 

 shafts of the large quill-feathers were white ; the females had not 

 the usual portion of white on the breast ; the coverings of the 



legs 



