374 BULLETIN 191, UNITED STATES NATIONAL MUSEUM 



DISTRIBUTION 



Range. — Northern North America; not regularly migratory. 



The rang-e of the Hudsonian chickadee extends north to northern 

 Alaska (Hunt River, Tanana, White Mountains, and Bern Creek) ; 

 Yukon (Robinson Canip) ; Mackenzie (Fort Goodhope, Lake Hardisty, 

 and Fort Rae) ; northern Manitoba (Lake Du Brochet and Mosquito 

 Point); northern Quebec (Chimo) ; and Labrador (Okkak). East 

 to Labrador (Okkak, Davis Inlet, and Cartwright) ; Newfoundland 

 (Paynes Cove, St. John's, and Makinsons Grove) ; Nova Scotia (Dart- 

 mouth and Seal Island) ; New Flampshire (Washington) ; and south- 

 eastern New York (Big Indian Valley). South to New York (Big 

 Indian Valley) ; possibly Massachusetts (see text) ; possibly Pennsyl- 

 vania (see text) ; southern Ontario (Brule Lake and Sayma Lake) ; 

 northern Michigan (Blaney) ; northern Wisconsin (Mamie Lake) ; 

 northern Minnesota (Sandy Lake and Deer River) ; northern Montana 

 (south fork of Teton River) ; and southern British Columbia (Schoon- 

 over Mountain). West to British Columbia (Schoonover Mountain, 

 Salmon River, and Ninemile Mountain) ; and Alaska (Houkan, Fort 

 Kenai, Nushagak, Nulato, Kowak River, and Hunt River). The species 

 has been reported in the mountains of eastern Pennsylvania (Laanna and 

 Pocono Lake) during the summer, and it may be found to breed there. 



While not regularly migratory there appears to be an occasional fall 

 movement that extends the range in winter south to southern Michigan 

 (Lansing) ; northern Illinois (V/aukegan Flats) ; southern Minnesota 

 (Fairmont) ; and northern North Dakota (Upsilon Lake) ; Massachu- 

 setts; and New York. 



As outlined the range is for the entire species, of which four sub- 

 species are recognized. The typical Hudsonian chickadee (P. h. hud- 

 sonicus) is found from northern Alaska and Mackenzie southvv'estward 

 to Ontario ; the Columbian chickadee (P. h. CQlumbianus) is found from 

 Montana and Alberta west through British Columbia and Alaska to the 

 Kenai Peninsula; and the Acadian chickadee (P. h. littoralis) occupies 

 that part of the range that, in general, is east of Michigan and Ontario. 



The Cascade brown-headed chickadee (P. h. cascadcnsis) is apparently 

 confined to the northern Cascade Mountains in Washington. 



Egg dates. — Alaska: 1 record, June 9. 



Alberta: 4 records, May 17 to June 13. 



Labrador: 5 records, June 8 to 12. 



Manitoba: 5 records, Jure 2 to 15. 



Nova Scotia: 26 records, May 16 to June 9; 14 records; May 29 to 

 June 5. 



