76 



ANIMAL BIOLOGY 



thrush family. The total number of species of the perching birds is 

 far greater than that of all other species taken together. We shall 

 now group together a few of the more closely related orders, and 

 discuss somewhat their characteristic adaptations of structure. 



FIG. 61. Flamingoes. (Photographed in N. Y. 

 Zoological Park, by E. R. Sanborn.) 



68. Webfooted birds (swimming birds). In this group we 

 include several orders of birds that have webbed feet, which fit them 



