. The birds of North and Middle America : a descriptive catalogue of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean sea, and the Galapagos Archipelago . Birds. 136 BULLETIN 50, UNITED STATES NATIONAL MUSEUM Genus CANACHITES Stejneger Catiace (not of Curtis, 1838) Reichenbach, Av. Syst. Nat. Vog., 1853, xxix. (Type, by monotypy, Tetrao canace Linnaeus, which here = T. canadensis Linnaeus.) Canachites Stejneger, Proc. U. S. Nat. Mus., viii, 1885, 410. (
. The birds of North and Middle America : a descriptive catalogue of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean sea, and the Galapagos Archipelago . Birds. 136 BULLETIN 50, UNITED STATES NATIONAL MUSEUM Genus CANACHITES Stejneger Catiace (not of Curtis, 1838) Reichenbach, Av. Syst. Nat. Vog., 1853, xxix. (Type, by monotypy, Tetrao canace Linnaeus, which here = T. canadensis Linnaeus.) Canachites Stejneger, Proc. U. S. Nat. Mus., viii, 1885, 410. (Type, by original designation, Tetrao canadensis Linnaeus.) Tympanuchus Reichenow, Die Vogel, i, 1913, 320, part. Small wood grouse (length about 165-187 mm.) with a general re- semblance in form to Dendragapus but with only 16 (instead of usual 20) rectrices, and adult males without an inflatable air sac on sides of neck; coloration very different. Bill relatively small, its length from frontal antiae about one-fourth the length of head, its depth at same point about equal to its width; culmen very indistinctly ridged; rhamphotheca smooth throughout; maxil-. Figure 9.—Canachites canadensis. lary tomium distinctly but not strongly concave or arched. Wing moder- ate or rather small, with longest primaries projecting beyond tips of longest secondaries between one-fourth and one-third the length of wing; third and fourth primaries longest (the fifth nearly as long), the first (outermost) intermediate between seventh and eighth; inner webs of three outer primaries slightly emarginate or sinuate. Tail about two- thirds as long as wing, more or less rounded, the rectrices (16) broad, with tips broadly rounded (C. canadensis) or nearly truncate (C. jranklinii). Tarsus less than one-fourth as long as wing, completely and densely clothed with soft, hairlike feathers; except on heel, the basal phalanx of middle toe also feathered along each side (except in sum- mer) ; middle toe very s
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