TETRAONIDiE, GltOUSE, PARTllIDGES. GEN. 179, 180. 233 



Visually some tawny, especially on the wings; quills vai-icgatecl with tawny; 

 tail with a terminal orange-brown band, its upper coverts plain; 15-17; 

 wing 7 ; tail 5 ; 9 rather less, no con- 

 tinuous black below, but variegated 

 with blackish, white and tawny; above, 

 much as in the ^ , but more tawny. N. 

 Am., northerly; in Brit. Am., W. to 

 Alaska; in U. S., W. to Rocky Mts. ; 

 S. into the northern tier of states ; 

 Maine, and casually to Massachusetts. 

 NuTT., i, 667; Aud., v, 83, pi. 294; 



Bd., 622 CANADENSIS. 



Ci- Var. FEANKLIMI. Tail less rounded, Fig.U?. Canada Grouse. 



lacking the terminal orange-brown band, 



and its upper coverts conspicuously white-tipped. liock}^ and Cascade Mts., U. S. 



Bd., C23; Coop., 529. 



**Tail normally of 20 (18-22?) feathers. {Dendrarjapns.) 



\'^ i DtisJci/ Grouse. ^ blackish, more or less variegated with slate-gray, or 

 a peculiar slat^'-black ; throat and sides marked with vidiite ; breast black ; 

 belly slate ; tail clouded with slate and black, and with a broad terminal 

 slate bar ; 18-20 ; wing 9-10 ; tail 7-8 ; ? smaller, not particularly different 

 in color, but not so uniformly dark, having ochrey or reddish-brown variega- 

 tion in places. Rocky and other Mountains, U. S. to the Pacific. Nutt., 

 i, 666; Aud., V, 89, pi. 295; Bd., 620; Coop., 526. . . . obscueus. 

 U, Var. RiCHARDSONii. Tail nearly square, entirely black, or with only a slight 

 slate tipping. Central Rockjr Mountains and northward. Coop., 582. 



179. Genus CENTROCERCUS Swainson. 



') {! ^' Sage Ooclc. Code of the Plains. Tail very long, ecpialling or exceeding 

 the wings, of twenty stilfened, graduated, narrowly acuminate feathers ; 

 sides of lower neck AVith a patch of peculiar sharp scaly feathers, the shafts 

 of which terminate in bristly filaments, sometimes 3-4 inches long in the 

 $ ; tarsi full feathered. Very largo ; two feet or more long, wiug and tail 

 each about a foot ; 9 much smaller. Above, variegated with black, gray 

 and tawny ; below, a large l)lack abdominal patch in the adult. Confined to 

 the sterile plains and sage-brush {Artemisia) tracts of Western U. S. ; 

 S. to about 35° (Mojave river; Cooper). Sw. and Rich., F. B.-A. ii, 358, 

 pi. 58; Nutt., i, 666; Aud., v, 106, pi. 297; Bd., 624. ukopiiasianus. 



180. Genus PEDICECETES Baird. 



*.^* Neck without peculiar feathers ; tail very short, of sixteen narrow, soft, true 

 rectrices, and a middle pair, apparently developed coverts, projecting an inch 

 beyond the rest ; tarsi fully feathered. Length about 18 ; wing 8-9 ; tail 5-6. 

 Below, white, with numerous dark marks ; above, variegated with blackish and 

 white, or tawny ; quills dusky, with white or tawn};- spots on the outer web ; 

 central tail feathers like the back, others white on the inner web. Sexes alike. 



KEY TO N. A. BIRDS. 30 



