Bull. 17, Biological Survey, U. S. Dept. of Agricuitur 



Plate VII, 



ii 



Fig. 1.— Calamus Swamp, the Haunt of Several Marsh- 

 loving Birds. 



Fig. 2.— Calamus Swamp in Winter, Showing Hill Tenanted 

 BY Blue Jays, Great Horned Owls, Red-shouldered 

 Hawks, and Ruffed Grouse. 



