328 Rhoads on the Hudsonian Chickadee and its Allies. T Q " t 



The Hudsonian Chickadee rarely visits the lowlands south of 

 the 47th parallel except on the coast, and it is practically non- 

 migratory. It breeds in the Adirondack^, the White Mountains, 

 and the mountains of Maine, but has not been found in the 

 Alleghanies even in winter. Its distribution west of the Great 

 Lakes is a mystery but as given above probably approximates 

 closely to the lines of the Cold Temperate Subregion as defined 

 by Drs. Allen and Merriam. In the absence of specimens from a 

 vast area to the southeast of the Severn, we may take the average 

 of a series of twenty-five from the United States and Canada. 

 On this basis hudsonlcus may be characterized as the smallest, 

 and, with the exception of stoneyi, the palest of the group. 

 Worn summer specimens from Nova Scotia and New Brunswick 

 are browner and smaller than any others in the entire series. 

 They represent the littoralis extreme described by Bryant but 

 show no differences of special diagnostic value from Ontario or 

 United States birds, or from the specimen from Moose 

 Factory. A fine series of spring birds from New Brunswick 

 shows, with selected skins of like date from the United States, 

 that hudsonicus is more unicolor on the upper parts, the pale 

 reddish brown of crown differing but slightly from that of back. 

 The same unicoloration is noticeable in evura, which is even, 

 more decided brown over the dorsal area in that race. 



The only common character shared by hudsonicus a\\<\ ungava, 

 as compared with their western allies, is in the small size and 

 attenuation of the bill. 



Average measurements of 30 adults : — Wing, 61 mm. (58-64); tail, 60 

 (58-64) ; tarsus, 16 (15. 5-16. 5) ; bill from nostril, 7 (6.5-7.5). 



Specimens and localities : — Moose Factory, St. James Bay, 1; Richmond 

 Hill, Ontario 1 ; Ottawa, Ontario, 1 ; Beauport, Ontario, 1 ; Campbellton, 

 N. Brunswick, 19; Point Lepreaux, N. Brunswick, 1 ; "New Brunswick," 

 2; Steiwacke, N. Scotia, 2; Halifax, N. Scotia, 1; "Nova Scotia," 1; 

 "Labrador," 2; Island Falls, Maine, 1 ; Wadley Brook, Maine, 1 ; Sutton, 

 Vermont, 1 ; Mt. Adams, Mass., 1 ; St. Regis Lakes, N. York, 2. 



2. Parus hudsonicus ungava, subsp. nov. Labrador 

 Chickadee. 



Habitat. — Northern Labrador. 



Subsp. chat. — Larger, darker above and with slightly larger bill than 

 hudsonicus. Plumbeous brown of crown and nape showing more marked 



