THE HYBRID GROUSE. 



595 



Both those shot in 1883 had the feet only slightly 

 feathered. 



I think that we have now before us the following scale of 

 the varieties^ the wood-frequenting Grouse : I. Urogallus ; 

 II. Almost pure Urogallus ; III. Reversion to Urogallus ; 

 IY. Thorough Hybrid Cock, i. e. medius, of the usual type ; 

 V. tetrix. 



The following Table will make this evident at a glance : 



The interesting fact that the two Hybrid Cocks first killed 



