530 Capt. SariNe’s Memoir on the Birds of Greenland, 6c. 
state. "These have hitherto been usually referred to as synonyms 
of the F. Peregrinus. ! 
i 3. Convus Conax. Raven. 
C. Corax. Gmel.i. 364. Lath. Ind. Orn.i. 150. Temm. 66. Fabr. 62. Faun. Suec. 29. 
Müll. no. 86. Briin. no. 8.—Raven. Lath. Syn. i. 367. & Supp. 74. Arct. Sool. ii. 
945. Br. Zool. i. 279. Mont. Dict. & Supp. Wil. Am. Orn. ix. 113. 
Killed at Hare Island, and seen on the west coast of Greeniand 
in lat. 754°. We did not notice a pied one, although such a vari- 
ety is said to be common in arctic countries. 
4. Terrao Lacorus. Ptarmigan. 
T. Lagopus. Gmel.i. 749. Lath. Ind. Orn. ii. 659. Faun. Suec. 73. Brün. nos. 198 & 
199. Fabr. 114. Müll. no. 993.. Temm. 293.—Ptarmigan. Lath. Syn. iv. 741. 
Br. Zool. i. 359. Arct. Zool. ii. 315. Mont. Dict. 8 Supp.—T. Rupestris. Gmel. i 
751. Lath. Ind. Orn. ii. 640.—Rock Grous. Lath. Syn. a 217. Arct. Zool. ii. 
312. 
Killed June 19th + at Mi Island. The females were laying : 
they 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 they 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 
