XV 



AN UNCAGED ZOO 



199 



The honey-guide was originally described as a cuckoo 

 (Cuculus indicator], sometimes the Bee cuckoo. It 

 resembles the cuckoos in two particulars. Its feet are 

 zygodactylous, that is, the four toes are arranged in two 

 pairs, of which one pair is turned forward and the 



. 



., K 



A Bush Shrike (Dryocopun Junebris). 

 Speke's "Black metal-toned Whistler." 



other backwards. The other feature is not to the credit 

 of either bird, for it is asserted that the honey-guide, 

 like the cuckoo, lays its eggs in the nest of some other 

 bird and allows the rightful owner of the nest to hatch 

 out both sets of eggs. 



