ALL BIRDS LOOK ALIKE, BUT— 



At first, all birds may look alike to you, except for differences in size or color; the 

 swallow is as much bird as the ostrich or penguin. As you meet more and more kinds 

 of birds, you come not only to distinguish them or to recognize them by name, but also 

 to notice that they can be grouped into several families or orders — those with flat 

 bills, for example, and those with pointed bills; or those that ore more or less like 

 the familiar hen and those that resemble in many ways the hawk or the eagle 



