155 



cause they are vei\y slow and quiet in their actions and do 

 not often use their voices, but they can sing, or rather they 

 liave notes which can hardly be called songs. The tones of 

 the two species are ver^r similar but one familiar with them 

 can always tell which kind it is by the sound and the 

 rhvthm. The Black-bill has regular intervals between the 



Pig. 1.32. NEST OF YELLOW-BILLED CUCKOO. 



"kow-kow's" while the Yellow-bill usuallv rapidly retard.? 

 his. 



Although Cuckoos build homes and care for their young 

 after a fashion, they do not have the attachment for them 

 that most birds do for their little ones. I have not yet, out 

 of probabh- half a dozen trials, succeeded in getting one to 



