INTRODUCTION. 



23 



By September 28 (1878) most of the birds had left the vicinity of the Vega's quarters there or 

 were seen passing high overhead toward the southern entrance to Bering Straits, on their way 

 south. From that date to October 19 an endless procession of birds moved by on this course, 

 but by November 3 even the gulls became rare. This great flight of birds came from the north- 

 west, toward the New Siberian, Wrangel, and the group of islands discovered by the Jeannette 

 party. A number of species of birds are common to both shores of Bering Straits. Species of 

 circumpolar distribution are, in a number of cases, represented by a dark form on the American 

 continent and a light one on the Old World side, notably the Hawk Owl, Great Gray Owl, and 

 the Rough-legged Hawk. 



SIBERIAN, OR OLD WORLD, SPECIES KNO'WN TO OCCUR IN ALASKA. 



1. Cyanecula suecica. 



2. Saxicola cenanthe. 



3. Phyllopseustes horealis. 



4. Parus cinctus obtectus. 



5. Budytes flavus leucostriatus. 



6. Anthus cervinus. 



7. Pyrrhula cassini. 



8. Ulula cinerea lapponica. 



9. Surnia ulula. 



10. ArcMbuteo lagopus. 



11. Aegialilis mongola. 



12. Gharadrius dominieus fulnis. 



13. Idmosa baueri. 



14. Tringa acuminata. 



15. Uurynorhmchus pygmwus. 



16. Tringa ferruginea. 



17. Anas penelope. 



18. Oidemia funca. 



19. Larus schistisagus. 



20. Fulmarus glacialis glupiscJia, 



SPECIES FROM THE COASTS AND ISLANDS OP THE PACIFIC. 



1. Apliriza virgata. 



2. Eeteractitis incanus. 



3. Numenius tahitiensis. 



4. Puffinus tenuirostrls. 



SPECIES KNOWN TO OCCUR ONLY IN ALASKA. 



1. Parus atricapillus turneri. 



2. Troglodytes alascensis. 



3. Leucosticte griseonucha. (This bird 



occurs also upon the Commander 

 Islands, but its proper position is 

 with the birds of this list.) 



4. Plectrophenax hyperboreus. 



5. Melospiza cinerea. 



6. Perisoreus canadensis fumifrons. 



7. Lagopus rupestris nelsoni. 



8. Lagopus rupestris aiMiensis. 



9. Tringa ptilocnemis. 



10. Sterna aleutica. 



11. ^strelata fislieri. 



SPECIES HAVING THEIR CENTER OF ABUNDANCE WITHIN THE LIMITS OP ALASKA. 



[Species having their center of abundance -within the limits of Alaska, and upon -which, to a great extent, rests 

 the distinctive characteristics of the avifauna of that region. AU of the species in this list are known to occur 

 outside the limits of the Territory, and none of them have been named in the preceding lists.] 



1. Leucosticte tephrocotis littoralis. 



2. Melospiza fascial a rufina. 



3. Ammodramus sandwichensis. 



4. Picoides americanus alascensis. 

 5 Grus canadensis. 



6. Branta canadensis minima. 



7. Philacte canagica. 



8. Arctcnetta fischeri. 



9. Phalacrocorax pelagicus robustus. 



10. Eissa brevirostris. 



11. Xema sabinii. 



12. Fulmarus glacialis rodgersii. 



13. Urinator adamsii (provisionally in 



this list). 



14. Simorhynchus pusillus. 



15. Brachyrliamphus marmoratus. 



