324 NATURAL HISTORY. 



as he proceeds, they increase in rapidity, until at last, and 

 after perhaps the lapse of a minute or so, he makes a sort of 

 gulp in his throat, and finishes with sucking in, as it were, his 

 breath. 



" During the continuance of this latter process, which only 

 lasts a few seconds, the head of the Capercaillie is thrown up, 

 his eyes are partially closed, and his whole appearance would 

 denote that he is worked up into an agony of passion. At this 

 time, his faculties are much absorbed, and it is not difficult to 

 approach him." 



The nest is made on the ground, and contains from six to 

 twelve eggs. 



Tetrix, the Black Grouse. 



The BLACK GROUSE or BLACK COCK is still found on the 

 moors of Scotland and some parts of England, and with the 

 red grouse tempts innumerable sportsmen annually to spend 

 their leisure months on the moors. 



