HRITISH BIRDS. 347 



THK BLACK GROUSE. 



BLACK (JAMK, OR BLACK COCK. 



(Tctrno Tctrix, Linn. Tetras hirkhaii, Temm.) 



THIS bird, though not of greater bulk than the 

 Common Hen, weighs nearly four pounds ; length 

 about one foot ten inches, breadth two feet nine. 

 The bill is dark ; the eyes deep blue ; below each 

 eye is a spot of dirty white, and above a larger one, 

 of a bright scarlet, which extends almost to the top 

 of the head; the general colour of the plumage is 

 deep black, richly glossed with blue on the neck 

 and rump; the lesser wing coverts are dusky 

 brown; the greater white, which extends to the 

 ridge of the wing, forming a spot of that colour on 

 the shoulder when the wing is closed; the quills 



