The Making of Species 



likelihood that they have suddenly arisen and 

 managed to establish themselves alongside of the 

 parent species. 



The Curassows, Crax grayi, C. hecki, each 

 of which is only known by a very few specimens, 

 appear to be mutations of the female of the 

 globose Curassow, Crax globicera. The fact 

 that when a female hecki bred in the London 

 Zoological Gardens with a male globicera, the 

 solitary young one which lived to grow up was a 

 pure globicera, renders the assumption almost 

 certain. 



The Chamba Monaul (Lophophorus chambanus) 

 seems to be a mutation of the male of the 

 common Monaul or Impeyan Pheasant {Lopho- 

 phorus impeyanus\ the common species of the 

 Himalayas. 



The Three-coloured Mannikin (Muniamalacca) 

 of South India is probably simply a white-bellied 

 form of the widely-ranging Black-headed Man- 

 nikin (M. atricapilla), which has the abdomen 

 chestnut like the back. Intermediate wild- 

 caught forms have been recorded. 



The African Cordon-bleu (Estrelda phcenicotis) 

 and Blue-bellied Waxbill (E. cyanogastrd] would 

 also seem to be mutations, as almost the only 

 difference between them lies in the fact that 

 the male of the former has a crimson cheek- 

 patch, which is wanting in the latter. 



The Ringed Finch (Stictoptera annulosa) of 

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