THE CUCKOO. 



to lay, watched the nest of some small 

 bird until the owner left it in search of 

 food, when she stealthily sat down and 

 dropped one of her own eggs into the 

 structure. Unfortunately for this theory, 

 it would not hold good in the case of 

 domed nests built by such species as the 

 Common Wren and Willow Warbler, 



YOUNG CUCKOO IN MEADOW 

 PIPIT'S NEST. BIRD'S OWN EGGS 

 THROWN OUT ON TO EDGE 

 OF STRUCTURE. 



