744 SYSTEMA TIC SYNOPSIS. — GALLIN/E — ALECTOROPODES. 



In winter a black stripe on head. Bill slender. 



Northern N. Am. at large, Europe, etc rupestris 



Greenland and N. K Arctic Am r. reinhardii 



Newfoundland only welchi 



Uualashka and adjacent Aleutian Islands '• nelsoni 



Atka, one of the Aleutians ''• atkhensis 



Kyska and Adak, two of the Aleutians, June and July r. townsendi 



Attn, one of the Aleutians, May and June evermanni 



Tail white at all seasons leucurus 



L,. lago'pus. (Figs. 500, 501.) Willow Grouse. White Grouse. Willow Ptar- 

 migan. Willow Partridge. Rehusak. Bill very stout and convex, its depth at base 

 0.40 or more, as much as distance from nasal fossa to tip; whole culmen 0.75; bill black at 



all seasons. <? 9 , in 

 winter : Snow white ; 

 14 tail-feathers black, 

 white - tipped ; middle 

 pair (which most re- 

 semble and perhaps are 

 true rectrices, having 

 no after - shafts) to- 

 gether with all the 

 coverts, one pair of 

 which reach to end 

 of tail, white ; shafts 

 of several outer wing- 

 quills black ; those of 

 the secondaries white ; 

 no black stripe on head. 

 (J, in summer: Head 

 and fore parts rich chest- 

 nut or orange-brown, 

 more tawny-brown on 

 back and rump ; the 

 richer brown parts 

 sparsely, the tawny- 

 brown more closely, 

 barred with black ; most 

 of the wings and other 

 under parts remaining 

 white. 9 similar, wholly 

 colored excepting wings, 



Fig. 500. — Willow Ptarmigan, summer plumage, J nat. size. (From Brehm.) ^]^g color more tawnv 



than in ^, and more heavily, closely, and uniformly barred with black. Length 15.00-17.00; 

 wing 7.50-8.00 ; tail 5.50. No concise description will fit all the plumages of age and sex, 

 when the bird is not white ; but the species is unmistakable in all its mutability. Chicks in 

 down are extremely pretty, of a drab color above and sulphury below, the upper parts mottled 

 with black, the head and rump striped with the same, the crown chestnut. A circuinboreal 

 species of Europe, Asia, and North America, in the latter S. barely to the U. S. border, as 

 accidentally in winter to Maiue and Massachusetts; in Alaska S. to Sitka; breeding range 

 confined to the Fur Countries from lat. 55° northward to the limit of trees, but in the Bar- 

 ren Grounds mainly replaced by the Rock Ptarmigan ; migratory to some extent. Packing 



