RESIDENT BIRDS IN OUR NORTHERN STATES 273 



water. Their plumage is always kept well oiled, so that it 

 is not wetted, although they swim and dive for hours. 

 These birds are called Swimmers. 



Another well-marked order is formed by the Waders, or 

 Marsh Birds. Their legs are very long and enable them to 

 wade about in shallow water. Their neck and bill are also 

 long and enable them to procure fish and other aquatic ani- 

 mals. 



You may now try to find some of the characteristics of 

 Woodpeckers, Chickens, and Birds of Prey. How do owls 

 differ from hawks ? 



