Feet and Legs 



355 



these, as exact divisions, have long since been abandoned, 

 yet it is worthy of note that even in the most modern 

 classifications many of these groups hold good in the 

 main, although based on other and more fundamental 



FIG. 284. Foot of Brown Pelican. 



characters. Examples of these are the ostrich-like birds, 

 or runners; the fowl-like birds, or scratchers; and the 

 Passeres, or perching birds. But there is no doubt that 

 several unrelated groups have independently acquired the 



