134 FIELD-STUDIES OF RARER BIRDS 



species' principal fare consists of voles, varied by 

 young rabbits in their season, and small birds, 

 such as Meadow-Pipits. That it ever interferes 

 with the " cheepers " of grouse, I for one utterly 

 disbelieve. The three largest " castings " I have 

 measured were individually 3fin. long by 3 in. in 

 circumference, 3 in. long by 3 in. round, and 

 3 in. by2fin. 



