CAPERCAILLIE. 



501 



Birklian. Urogallus minor. Ovum priori siinilc, sed 

 minus. Fig. 2, Zwittcr vom Auerliahn und Bivklicnnc. 

 Urogallus hybridus. Ovum dilutius, maculis majoribus. 



I have referred, in the article on the Plicasant, to the sin- 

 gular change which takes place in the plumage of some of the 

 females among Pheasants, and other birds, by which they 

 assume, to a certain extent, the colours of the male; and M. 

 Nilsson having figured in his illustrations before mentioned, 

 a female of the Wood-grouse in the plumage of the male, 

 which he calls truly a barren female, I have here inserted a 

 figure of that bird. 



