LAGOPUS. 201 



Stnnmer male : Above d.irk brownish gray, vcnniculatoil and 

 coarsely spotted with bhiclv, many of the leathers tipped 

 with white ; chest, upper breast, and sides similar, but 

 without the black central blotches to the feathers; head 

 and neck more coarsely barred with black, grayish white, 

 and pale grayish buff, the lores entirely black; throat, 

 wings (except tertials, etc.), belly, and lower breast white ; 

 under tail-covcrts duskj- grayish, tipped with white. Sum- 

 mer female : More coarsely barred with black and grayish 

 white, mixed with buff, the light bar.s on chest and under 

 tail-coverts more oehraceous. Ilab. Newfoundland. 



303. L. welchi Brewst. Welch's Ptarmigan. 



c*. Summer males with upper parts very finely and densely vermiculated, 



the back and scapulars usually without black spots or blotches 



(never with these very conspicuous?). 



d\ Summer male : Ground-color of upper parts deep umber-brown ; 



chest barred with bright tawny brown and black, the lower 



portion frequentl}' interspersed with uniform blackish feathers. 



Summer female: Not obviously different from the same sex of 



Zi. rupestris. Hah. Island of Unalashka, Aleutian chain. 



3026. L. rupestris nelsoni Stejn. Nelson's Ptarmigan. 

 d''. Sumincr male: Gi-ound-color of upper parts pale raw-umber brown, 

 mixed with pale grayish ; chest and neck barred with pale 

 brownish ochre and black, the lower portion of the former 

 without admixture of dusky feathers. Summer female : 

 Ground-color of upper parts oehraceous, mixed with pale 

 grayish buff, narrowly- and irregularly barred with black 

 (but with very little of black spotting), many of the feathers 

 tipped with white ; sides and flanks similar, but more regularly 

 barred, and without traces of spots; chest and neck coarsely 

 barred with oehraceous and black, jrab. Island of Atkba, 



Aleutian chain 302c. L. rupestris atkhensis (Ti-hxer). 



Turner's Ptarmigan, 

 a'. Tail white. 



Summer male: Above pale fulvous or dull grayish buff, coarsely ver- 

 miculated, barred, and irregularl}- spotted with black ; chest, upper 

 breast, sides, and flanks very heavily spotted (transversely) and 

 baiTed with black on a whitish ground, usuall3' more or less mixed 

 with feathers having a pale fulvous ground and more narrowly 

 barred with black. Summer female : Similar to male, but usually 

 more buffy(?). Fall male: Ground-color of u]iper parts pale fulvous 

 or tawny, mixed with gra3Msh, finely frcckleil, vermiculated, and 

 irregularly barred with black, occasional feathers showing largo 

 irregular spots of the latter color; middle tail-feathers partly or 

 entirclj- fulvous, finely freckled and vermiculated with dusky; 

 2ii 



