BIRDS OF NORTH AND MIDDLE AMERICA 153 



[Canachites] canadensis Sharpe, Hand-list, i, 1899, 19, part. 



Canachitcs canadensis canace Macoun and Macoun, Cat. Can. Birds, ed. 2, 1909, 

 219, part (New Brunswick). — American Ornithologists' Union, Check-list, 

 ed. 3, 1910, 139, part; ed. 4, 1931, 80, part.— Philipp and Bowdish, Auk, xxxvi, 

 1919, 34 (Northumberland County, New Brunswick). — De Mille, Auk, xliii, 

 1926, 516 (near Mont Luis Lake, Gaspe County, Quebec). — Forbush, Birds 

 Massachusetts and Other New England States, ii, 1927, 23, part. — Bent, U. S. 

 Nat. Mus. Bull. 162, 1932, 131', part.— Roberts, Birds Minnesota, i, 1932, 367, 

 part (Nova Scotia; New Brunswick). — Taverner, Birds Canada, 1934, 154, 

 part. — Peters, Check-list Birds of World, ii, 1934, 36, part (New Brunswick; 

 Nova Scotia). — Hellmayr and Conover, Cat. Birds Amer., i, No. 1, 1942, 

 211, part (Nova Scotia; New Brunswick). 



[Canachites canadensis] canace Townsend, Auk, xl, 1923, 87, footnote (Gaspe 

 Peninsula). 



Canachites canadensis torridus Uttal, Auk, Ivi, 1939, 462 (Kejimkujik Lake, Nova 

 Scotia; descr. ; distr. ; crit.).; lix, 1942, 432, in text (Penobscot County, Maine). 



Genus BONASA Stephens 



Bonasa Stephens, in Shaw, Gen. Zoo!., xi, pt. 2, 1819, 298. (Type, as designated 

 by Gray, List Genera Birds, 1840, 62, Tctrao umbcllus Linnaeus.) 



Bonasia Bonaparte, Ann. Lye. Nat. Hist. New York, ii, 1826, 126. (Type, by 

 monotypy, Tetrao umbellus Linnaeus.) 



Hylobrontes Stone, Auk, xxiv, 1907, 198. (Type, by original designation and 

 monotypy, Tetrao wnbelliis Linnaeus.) (New name to replace Bonasa Stephens, 

 thought to be transferable to Tctrao ciipido Linnaeus under the "first species" 

 rule.) 



Medium-sized wood grouse (length about 394-482 mm.) with lower 

 half (more or less) of tarsus nude and scutellate; tail nearly if not quite 

 as long as wing, fan-shaped, with 18-20 rectrices, three relatively broad, 

 with broadly rounded or subtruncate tips ; sides of neck without inflatable 

 air sacs, but with a conspicuous erectile tuft of large, broad, slightly 

 rounded or nearly truncate soft, decumbent feathers (less developed in 

 females). 



Bill relatively small, its length from nostril about one-third the length 

 of head, its depth at frontal antiae about equal to its width at same point, 

 the culmen slightly ridged, the rhamphotheca smooth throughout, the 

 maxillary tomium regularly and rather deeply concave. Wing moderate 

 in size, deeply concave beneath, the longest primaries exceeding longest 

 secondaries by about one-third the length of wing; third or third and 

 fourth primaries longest, the first (outermost) intermediate between 

 seventh and eighth. Tail nearly as long as wing, slightly to distinctly 

 rounded, the rectrices (18-20) becoming gradually broader distally, their 

 tips broadly rounded or subtruncate. Tarsus less than one-fourth as long 

 as wing, its upper half (more or less) densely clothed with rather long, 

 hairlike but soft feathers (much shorter in summer), the lower portion 

 nude and scutellate, the acrotarsium with two rows of rather large scutella, 

 the planta tarsi with small hexagonal scales ; middle toe decidedly shorter 

 than tarsus, the inner toe reaching to penultimate articulation of middle 



