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Bird - Lore 



birds, like the Meadowlark, the Yellowthroat, and the Ovenbird, have remark- 

 able flight-songs which differ from their ordinary songs, and other birds, like 

 the Black and White Warbler, sing, during the nesting-time, a song radically 

 different from that used during migration. The interpretation of the different 

 songs sung by birds is as difficult as it is fascinating and offers a rare field for 



ROBIN SINGING 

 Song is the most conspicuous feature of the courtship of birds 



observation to those who have trained their ears to bird music and their minds 

 to the philosophy of evolution. 



The song of a bird is primarily an announcement to the female of the 

 presence of the male and a challenge to other males of his species to keep out 

 of the territory which he is guarding. The male birds ordinarily precede the 

 females on the northward flight, and, arriving on the breeding-grounds, 

 proceed to select the territory in which the future nest is to be built and 



