HIRDS 



29 



enemies of the different 

 species are present ? Much 

 of this side of the prob- 

 lem will be worked out 

 naturally in connection 

 with nesting habits, the 

 study of nest building, 

 and the fate of the differ- 

 ent nests in the spring. 



Pay particular attention 

 to the bird-food plants of 

 the area with reference to 

 abundance of food at dif- 

 ferent seasons. Note the 

 condition in this respect 

 for the different months. 

 Is the area stripped of 

 available food by the time 

 robins and bluebirds have 

 migrated in the fall ? May 

 this help to explain bird 

 migrations ? 



Note in detail what pro- 

 visions have been made in 

 your district to supply the 

 necessaries of bird life, 

 bird houses, drinking and 

 bathing fountains, plant- 

 ing of food trees. What 

 is done to protect the birds 

 from enemies? What in- ^ IG - H- Bird fountain. Natural rocks laid 

 a -i ,1 . in cement with deep chinks filled with soil 



fluence have these provi- and planted with osseS) (erl)Bi an<] wjld 



flowers 



sions exerted on the bird 

 population as compared 



Photograph by the author 



