INSECTS AND BIRDS. 



307 



is indicated by the following records of the contents of 

 a few birds' stomachs : 



I Yellow-billed Cuckoo 250 Tent Caterpillars 



1 Yellow-billed Cuckoo 217 Fall Web worms 



2 Flickers 800 Ants 



I Nighthawk 500 Mosquitoes 



i 60 Grasshoppers 



i looo Ants 



3 Mourning Doves 23100 Seeds (largely weed seeds) 



i Snowflake 1500 Weed Seeds 



When it is considered that the contents of a stomach 

 represents but a single meal, that the stomach of a bird 

 is ordinarily filled many times daily, and that large 



THE DIAGRAM ON THE LEFT REPRESENTS THE FOOD OF A CHIPPING 

 SPARROW; THAT ON THE RIGHT, THE FOOD OF A SONG SPARROW. 



numbers of birds can be assembled quickly where they 

 are most needed, the capacity of the bird for good be- 

 comes evident. 



Every farmer should know what families of birds 

 are of most service to him, for then he will be able to 

 do something intelligently to protect and increase such 

 birds upon his own land. 



EXERCISE. Name the wild birds you are familiar with, 

 list of the wild birds that stay all the year. 



Make a 



