336 



ORNITHOLOGICAL EXPLORATIONS. 



manifestly obscure the results were we to take iuto account those spe- 

 cies which never have been observed on the peninsula proper, nor are 

 likely ever to occur there except as accidental stragglers. These forms 

 are contained in the following table, but it must be observed that it 

 does not embrace all species which have only been recorded from the 

 islands and not from the uiainland, since such forms which have, prob- 

 ably, only been overlooked on the latter, especially Circumpolar, Palse- 

 arctic. Pacific, and East-Asiatic forms, may be regarded as truly Kam- 

 tschatkan. 



Table I. — Birds, American or peculiar to the Commander Islands, which 

 do not occur in KamtschatJca. 



Heteractitis incanus. 

 Olor columbianus. 

 Mareca americana. 

 Cbaritouetta albeola. 

 Phalacrocorax perspicillatus. 

 Lagopus ridgwayi. 



Falco pealei. 

 Haliaeetus leucocephalu„ 

 Corvus bebriugianus. 

 Leucosticte griseonucha. 

 Troglodytes pallescena. 



This virtually reduces the number of Kamtschatkan birds to 175. 



Before entering into a discussion of their geographical distribution it 

 may be well to show to which geographical categories the different 

 species belong. , 



Table IT. — Circumpolar forms. 



Colymbus auritua. 

 Urinator adamsii. 



arcticus. 



lumme. 

 Larus glaucus. 

 Gavia alba. 

 Sterna paradisaja. 

 Stercorarius parasiticus, 

 longicaudus. 

 pomarinus. 

 Oceanodrotna leucorrboa. 

 Areuaria interpres. 

 Cbaradrius squatarola. 

 Calidris areuaria. 

 Pbalaropus lobatus. 

 Crymopbilus fulicarius. 

 Cbeu byperboreus. 

 Auas boschas. 

 Dafila acuta. 

 Chaulelasmus streperus. 



Spatula clypeata. 

 Histrionicus histrionicua. 

 Harelda hyemalis. 

 Enicouetta stelleri. 

 Souiateria spectabilis. 

 Merganser serrator. 

 Lagopus lagopus. 

 Falco rusticolus. 



islandus. 

 Arcbibuteo lagopus. 

 Aquila cbrysaetos. 

 Asio accipitrinus. 

 Nyctea uyctea. 

 Plectropbtnax nivalis. 

 Calcarius lapponicus. 

 Acantbis linaria. 



bolbcBllii. 

 Pinicola enucleatdr. 

 Ampelis garrulus ? 



