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



Plate IX. 



NESTLING. Fig. 1.— House Wren. ADULT. 



[1, Cutworm ; 2, spider • 3, stink-bug ; 4, May-fly : 5, weevil : 6, grasshopper.] 



NESTLING. Fig. 2.— Bank Swallow. ADULT. 



[1, Weevil ; 2, ichneumon fly ; 3, winged ant ; 4, fly ; 5, dragon-fly : 6, stink-bug.] 



NESTLING. 



[1, Ground-beetle ; 



Fig. 3.— Catbird. adult. 



!, cutworm ; 3, ant ; 4, grasshopper : 5, spider.] 



Food of Nestlings and Adults of Three Common Birds. 



[The diagrams show the proportions of the various orders of insects in the food, each order 

 being represented by the insect belonging to it that is most commonly eaten by the bird whose 

 food is shown. (In the case of the Hymenoptera a division is sometimes made between the 

 parasitic members of the order, which are very useful, and those that are neutral or injurious. 

 The figures of insects are reduced from cuts kindly loaned by Dr. L. O. Howard.)] 



