Vol. XI Rhoads on the Hudsonian Chickadee and its Allies. 33 I 



'893 J 



and the tail averaging longer, being quite as long as in Colum- 

 bia nits. 



As stated in 'The Auk,' the three specimens of stoneyt are in 

 bad shape and lack date of capture. One, in well advanced 

 nestling plumage, is worthless for critical comparisons with 

 adults." The other two are alike and characteristic enough to 

 justify their present status in our nomenclature. Skins of P. 

 hudsonicus from Nulato, Alaska, are of interest, confirming the 

 close approach of boreal forms to the Arctic coast in the vicinity 

 of Norton Sound, as defined by Allen and Merriam, such speci- 

 mens being typical evura and not stoneyi. 



Average measurements of 2 adults .—Wing, 64 mm. (62 to 66) ; tail, 66 

 (64 to 68) ; tarsus, 16.3 (16 to 16.5) ; bill from nostril, 7.1 (7 to 7.2). 



Specimens and localities-.-Ko^ or Putnam River, Alaska, 3. 



4. Parus hudsonicus evura Cones. Alaskan Chickadee. 



Habitat.— Central and southern Alaska, west to Nulato, south 

 to Bristol Bay and Fort Kenai, east to the Mackenzie River. 



As stated in preceding descriptions, the Alaskan Chickadee 

 seems to as fully merit recognition on account of size as the 

 Kowak River race for its lighter coloration when the two are 

 compared with hudsonicus. Mr. Ridgway alludes, in his 

 description of stoneyi, to the -browner" appearance of certain 

 Alaskan skins, but considers it merely a seasonal variation. With 

 these skins now before me I find the average color of specimens 

 from the habitat of evura is almost identical with that of hudson- 

 icus at the same season and would call evura a large and much 

 browner hudsonicus, intermediate between hudsonicus and 

 Columbia 11 ns. 



Average measurements of 14 adults:-Wing, 65.4 mm. (60 to 70); tail 

 6; (61 to*68) ; tarsus, 16.S (16.5 to 17) 5 bill from nostril 7.2 (6.7 to 8). 



Specimens and localities:- Fort Simpson, Mackenzie River, 3; "Fort 

 Rae," Mackenzie District ,( ?) 2 ; Fort Yukon. Alaska, 2 ; Nulato. Alaska, 5 ; 

 Fort Kenai, Alaska, 2. 



5. Parus hudsonicus columbianus Rhoads. Columbian 

 Chickadee. 



Habitat.— Rocky Mountains, from the Liard River south 

 into Montana. 



