270 



U. S. NATIONAL MUSEUM BULLETIN 217 



Table 11. — Status of various migrating birds — Continued 



D. MlGEATING TO ASIA FOE THE WiNTEB 



Limosa lapponiea baueri 

 Oenanthe oenanthe oenanthe 

 Luscinia svecica svecica 

 Phylloseopus borealis kennicotti 

 Motaeilla flava tsehutscliensis 



Total (5) 



A 



P 



P 





Eu As Am 



P 



P 



P 



A 



P 







A 



P 



P 





AY 



P 



P 







(5) 



(4) 



(1) 



E. MlQBATING OVEE THE PACIPIC OcEAN 



Arenaria interpres interpres 

 Heteroscelus incanum 



Total (5) 



AY (7) 

 A 



(2) 



(2) 



(0) 



F. 



Acanthis homemamii exilipes 

 Acanthis flammea flammea 

 Plectrophenax nivalis nivalis 



WlNTEED 



>TG DT ALASK 



Eu As Am 



Eu As Am 



A(?) 



A 



P 

 P 

 P 



P 

 P 

 P 



P 

 P 

 P 



Total (3) 



(3) 



(3) 



(3) 



A remarkable 5 species (table lid) migrate after nesting in north- 

 ern Alaska to winter in Asia. Among these species the godwit 

 (Limosa) winters on Asiatic coasts, while the others seek some as yet 

 undefined wintering areas on the continent of Asia. The wheatears 

 {Oenanthe) are not differentiated from a widespread Asiatic and 

 European race. The four others are ascribed to races which are re- 

 stricted to nesting in northern Alaska and Yukon. Long establish- 

 ment of their remarkable migratory paths to a restricted nesting area 

 in western arctic and subarctic America is indicated in the racial 

 designations which distinguish them from close relatives in Asia. 



There are 2 species (table lie) which nest mainly in northern 

 Alaska and Yukon as far north as the arctic coast and which migrate 

 widely over the Pacific Ocean to winter on its coasts and islands. 

 Among the three migratory species which both winter and nest in 

 Alaska (table llf ) I can only distinguish the Alaskan snow buntings 

 {Plectrophenax) by a small difference in the thickness of their claws 

 from the widespread North American race. The winter distribution 

 of snow buntings suggests isolation of these in Alaska. I have no 

 evidence to suggest whether the nesting redpolls of Alaska and Yukon 

 come from the populations wintering in Alaska or from the western 

 Provinces of Canada. 



