BRITISH BIRDS, Vol. I., PI. 7. 





4 



Stages in the Growth of a Cuckoo. 



Fig. 1:13 days old, length 4^" 

 Fig. 3:16 days old, length 5i". 

 Fig. 5:21 days old, length 8". 



Fig. 2 : 14 days old, length 4|' 

 Fig. 4:18 days old, length 5f ' 

 Fig. 6 : 23 days old, length 9". 



(Photographed by P. H. Bahr.. 



