EASTERN NASHVILLE WARBLER 113 



The fall migration route is apparently a reversal of the spring route 

 southwestward into Mexico and Central America where it spends the 

 winter. 



Winter. — The Nashville warbler is evidently very common in winter 

 in certain parts of Mexico, for Dr. C. William Beebe (1905) says: "At 

 times there were twenty and thirty in sight at once near our camp in 

 the Colima lowlands." These may have been the western race. 



DISTRIBUTION 



Range. — Southern Canada to Guatemala. 



Breeding range. — ^The eastern Nashville and the western Nashville 

 (formerly the Calaveras) warblers breed north to southern British 

 Columbia (Tahsis Canal and Beaver Creek, Vancouver Island; 

 Pemberton, Lillooet, and Revelstoke) ; northern Idaho (Clark Fork) ; 

 northwestern Montana (Fortine) ; east-central Saskatchewan (Cum- 

 berland House) ; southern Manitoba (Duck Mountain, Lake St. 

 Martin, and Hillside Beach) ; central Ontario (Casummit Lake, Lake 

 Nipigon, and Lake Abitibi) ; and southern Quebec (Lake Baskatong, 

 Quebec, Kamouraska, Mingan, and Natashquan River). East to 

 southeastern Quebec (Natashquan River and the Magdalen Islands) ; 

 and Nova Scotia (Baddeck, Halifax, and Barrington) South to 

 Nova Scotia (Barrington) ; Maine (Ellsworth and Bath) ; north- 

 eastern Massachusetts (Haverhill and Beverly) ; southern Connecticut 

 (Norwich) ; northern New Jersey (Moe and Beaufort Mountain) ; 

 northeastern Pennsylvania (Dingman's Ferry, Mount Riga, and High- 

 land Falls) ; northern AVest Virginia (Stony River Dam, Canaan 

 Mountain, and Cranesville Swamp) ; northeastern Ohio (Pymatuming 

 Lake) ; southern Michigan (Ann Arbor) ; northeastern Illinois (Deer- 

 field) ; southern Wisconsin (Lake Koshkonong) ; central Minnesota 

 (Onamia and Detroit Lakes) ; reported to breed in northeastern Ne- 

 braska but no specific records; northwestern South Dakota (Cave 

 Hills) ; northern Idaho (Falcon) ; northwestern Oregon (Powder 

 River Momitains, probably) ; probably western Nevada (LakeTahoe) ; 

 and south-central California (Greenhorn Mountains) . West to cen- 

 tral and western California (Greenhorn Mountains, Paicines, and 

 Yreka) ; western Oregon (Pinehurst, Gold Hill, Depoe Bay, and Port- 

 land) ; western Washington (Mount Adams, Tacoma, and Blaine) ; 

 and southwestern British Columbia (Friendly Cove and Tahsis 

 Canal). 



There are several records of the occurrence of this species in spring 

 migration in southern Saskatchewan (Regina, East End, and Maple 

 Creek) ; and in fall at Lake Kimawan, Alberta, west of Lesser Slave 

 Lake. These records imply the existence of a breeding range north 

 of any yet discovered. 



