310 



ZOOLOGY. 



tarsi. ;uid their legs without feathers inferiorly, a struct un- 

 which gives them the appearance of walking on stilts, favour- 



_ 



Fig. 263. The Ptarmigan (Lagopfede) . 



able at once to rapid movement and to wading in fordable 

 waters. Their height is in general elevated, and the length 





Fig. 264. Common Hooco. 



of their nock is such that, however elevated* their legs, they 

 can collect their food on the ground without stooping. Some 



