ORDER PASSERES. 351 



b. Penthestes gambeli bafleyse (GRINNELL). Bailey's Mountain Chickadee. 



[738a.] 



Parus gambeli bailey ce GRINNELL, Condor, X, 1908, 29. (Mount Wilson, 

 at 5500 feet, Los Angeles Co., California.) 



RANGE. Mountains of Great Basin region and northern Lower California. 

 Breeds in Canadian and Transition zones from the Maury Mountains, Ore- 

 gon, south over Nevada and eastern California to the San Pedro Martir 

 Mountains, Lower California. 



Penthestes cinctus (BODDAERT). 



RANGE. Siberia from the Yenesei River eastward to Alaska and 

 Anderson River, Mackenzie. 



a. [Penthestes cinctus cinctus. Extralimital.] 



b. Penthestes cinctus alasce'nsis (PRAZ^K). Alaska Chickadee. [739.] 



Paecila cincta alascensis PRAZ^K, Orn. Jahrbuch, VI, 1895, 92. (Alaska.) 



RANGE. Shores of Okhotsk Sea, Siberia, and northern Alaska (St. 

 Michael and Kowak River), and east to northwestern Mackenzie (Anderson 

 River) in Hudson ian Zone. 



Penthestes hudsonicus (FORSTER). 



RANGE. Northern North America, breeding almost wholly north 

 of the United States. 



a. Penthestes hudsonicus hudsonicus (J. R. FORSTER). Hudsonian Chick- 

 adee. [740.] 



Parus hudsonicus FORSTER, Philos. Trans., LXII, 1772, 383, 430. (Sev- 

 ern River, west coast of Hudson Bay, Canada.) 



RANGE. Northern North America. Breeds in Hudsonian and Canadian 

 zones from Kowak Valley, Alaska, and tree limit in central Mackenzie and 

 central Keewatin south to southern British Columbia, central Alberta (cas- 

 ually Montana), northern Manitoba, central Ontario, and Ungava; south in 

 winter casually to northern Illinois. 



6. Penthestes hudsonicus littoralis (H. BRYANT). Acadian Chickadee. 

 [740a.] 



Parus hudsonicus, var. littoralis BRYANT, Proc. Bost. Soc. N. H., IX, 1865, 

 368. (Yarmouth, Nova Scotia.) 



