64 250 



too, there are a number of reddish-brown feathers with narrow 

 transverse bands of greyish-brown. 



Tail-feathers as in the winter dress, black with white tips, 

 broadest in the middle (9mm), at the extremities almost obsolete. 

 Outermost rectrix about 30 mm larger than the middlemost. 



Tipper tail-coverts partly black with white tips (normal winter 

 dress), partly marked with alternate transverse bands (about 3 mm) 

 of black and rusty yellow. Both the former and the latter are new 

 and have blood-shafts ; hence the latter, which belong to the autumn 

 dress, must be moulted inmediately on their attaining the full size. 



Under tail-coverts white. 



Primaries as in winter dress, chieily dark greyish-brown, with 

 the tips and the outermost narrow web entirely white, or speckled 

 with white. 



Secondaries: Base of feathers speckled with white, tips white. 



Upper wing-coverts: Base of outer web black, tips white, or 

 white speckled with black. Base of inner web black speckled with 

 white, tips white. 



Under imng-coverts white. 



Tihia white; here and there, but generally concealed by the 

 white feathers, there are a few banded with black and brown, and 

 others white with the inner web black. 



Tarsus white, unmixed with greyish-black. 



Toes: Plumage thin and short, the whole of the naked por- 

 tion of the middle toe and the other toes being very conspicuous. 

 The toothed horny comb developed much as in old birds. 



Claws dark horn-brown, comparatively short (on the middle 

 toe 16 mm). (Gudbrandsdalen 8th Oct. 1872, Univ. Mus.) 



Young male in half winter dress. 



Head and neck with a number of pale rusty yellow feathers, 

 and one or two transverse bands of dusky-grey. These feathers, 

 are paler than the corresponding ones in either black game or 

 ptarmigan. 



Back has a number of reddish-brown feathers (the hrcast but 

 very few) transversely marked with black, oblique, and slightly 



