THE BIRDS OP THE PRIBILOF ISLANDS. 



363 



Species wldoh probably breed (9). 



Cepphus columba. 

 Larus schistisagns. 

 Xema sabinii? 

 Anas boschas. 

 Histriouicus histrionicus. 



Eniconetta stelleri? 

 CrymophiluB fnlicarius? 

 Asio accipitrinus. 

 Nyctea nyctea? 



Of regular occurrence as migrants, evidently an incomplete list. 



Nettion carolinense Uucommon . 



Somateria v-nigra Common. 



Branta canadenais minima Few. 



Crymophilus fnllcarius Common. 



Phalaropus lobatus Common. 



Limosa lapponica b.iueri Common. 



Heteractitis incanus Common. 



Numenius borealis Eew. 



Charadrins dominicus fulvus Fairly common. 



Arenaria interprea Common. 



THE GEOGRAPHICAL DISTRIBUTION OP PRIBILOF BIRDS. 



The Holarctic region comprises all of the Northern hemisphere except the south- 

 ern portions. It is divisable into the following subregions: Palaearctic, Europe and 



Northern 

 America. 



Asia; Aleutican, North Pacific and adjacent shores; Nearctic, North 



American (Nearctic) forms occurring on the islands (18 species). 



Colymbus holboellii Migrant. 



Merganser americanus Migrant. 



Nettion carolinense Migrant. 



Anser albifrons gambeli Migrant. 



Branta canadensis minima Migrant. 



Olor cohimbianus Migrant. 



Grus canadensis Ears, accidental. 



Tringa niaculata Twice. 



Ereunetes pusillus Once. 



Totanus flavipes Once. 



Numenius hudsonicus Once. 



borealis Migrant. 



Aegialitis semipalmata Once. 



Falco peregrinus anatum . Migrant. 



ruaticolns gyrfalco Few, migrant. 



Hirnndo ery throgastra Twice, accidental. 



Anthus pensil vauicus Once, migrant. 



Mernla migratoria Once, accidental. 



Anas penelope Few, accidental. 



Tringa damacensis Once, migrant. 



Limosa lapponica baueri Migrant. 



Asiatic (Palaearctic) forms, none breeding.' 



Cliaradrius dominicus fulvus . . . Migrant. 



Arenaria interpres Migrant. 



Cuculus eanorus telepbouus - - . Once, accidental. 



Pacific (Aleutican) forms (S9 spedei, 18 breeding). 



Gaviaadamsil Migrant. 



Lunda cirrbata Breeds. 



Fratercula cornicnlata Breeds. 



Cy clorrhynohus psittacul us Breeds. 



Siraorhynchus cristatellns Breeds. 



pusillus Breeds. 



Synthliboramphns antiquus Doubtful. 



Cepphus columba Breeds? 



Uria troile californica Breeds. 



lomvia arra Breeds. 



Eissa tridactyla pollicaris Breeds. 



brevirostris Breeds. 



Laras barrovianus Breeds. 



glaucescens Breeds. 



sohistisaens Doubtful. 



Diomedea albatrus Migrant. 



Fulmarus glacialis rodgersii Breeds. 



Oceanodroma furcata Breeds ? 



Phalacrocorax urile Breeds. 



Somateria v-nigra Winter. 



Philacte oanagica : Migrant. 



Tringa ptiloonemis.... Breeds. 



Heteractitis incanus Migrant. 



Haliajetus leucocephalus alascensis . . Accidental. 



Leucoaticte griseouucha Breeds. 



Passerina townsendi Breeds. 



Ammodramus sandwichensis Accidental. 



Calcarius lapponicus alascensis Breeds. 



Troglodytes alascensis Breeds. 



' It is of course understood that these birds are found here at about the most eastern portion of 

 their range, while of the 18 American forms they here occur at about the most western part of their 

 habitat. 



