14G HABITS OF BIRDS. 



reason that the birds in whose nests the cuckoo 

 parasitically deposits her egg 1 , often, if not always, 

 turn out or destroy their own to make room for 

 hers. 



During the process of hatching the mother-bird 

 acts as if she knew that by keeping the eggs all in one 

 position, some would be more favourably treated than 

 others. 





