1687.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 137 



79 i^d). Spatula clypeata (Lix.) 159. 



Summer visitor to Bering Island ; one of the rarer ducks, but possibly 

 breeding-. 



80 (67). Aytliya fuligula (Lin.) 1(X». 



Bare on the islands, but may breed occasionally. An additional speci- 

 men ( 5 ) wasseutby Mr. Grebuitzkiin 1885 (U.S. Nat. Mus.,Xo. 106620). 

 It measures as follows : Wing, 192™'"; tail-feathers, oS'"""; exp. culmen, 

 36™™; tarsus, 34™™; middle toe with claw, 57™". 



SI (S&). Aythya marila (Lix.) ICl. 



A common summer visitor, breeding numerously on Bering Island; 

 sparingly on Copper Island. 



?? Aythya ferina (Lix.) 318. 



Very doubtful. Xot reported from Kamtschatka.* 



82 (89). Glaucionetta clangula (Lix.) Ifcio. 



A not very common winter visitor to the islands. 



83 (90). Cliaritonetta albeola (Lin.) 166. 



An accidental visitor during the winter of 1882-'83. 



84 (91). Histrionicus histrionicus (Lix.) 166. 



Occurs round the islands all the year round, but apparently without 

 breeding. 



85(92). Clangula hyemalis (Lin.) 169. 



A very common resident, breeding numerously on Bering Island. 



86 {9'6). Euicouetta stelleri (Pall.) 170. 



Inhabiting the shores of the islands during winter in countless num- 

 bers. They arrive in the beginning of November and stay until ufter 

 the middle of May. 



87 1^94). Somateria v-uigra Gray. 173. 



Breeds in very limited number in a few places on Copper Island, only 

 occasionally flying over to Bering Island, round the shores of which a 

 few may be seen in winter. 



* Xyroca nijroca (GuLD.) should be added to the list of Kamtschatkan birds as No. 

 88.1. In a letter to Notary Brucb, dated Petropaulski, October, 1827, aud published 

 in Okeu's Isis for 1829, pp. 523-530, Baron vou Kittlitz gives some of his ornithologi- 

 cal experience during the voyage. Speaking of the birds of Petropaulski, he says 

 {torn, cit., p. 529) : " I recognized very distinctly Anas crecca and leucophthalinos among 

 Bome ducks which were killed and shown to me." That in his " Denkwiirdigkeiteu "' 

 he forgets mentioning the White-eyed Duck is of no moment, for he also omits men- 

 tioning A. crecca, in the identitication of which he couid not well have been mistaken. 



