88 



SEXUAL selection: bieds. 



Part IL 



males, one after the other.^^ With Birds of Paradise 

 a dozen or more fiill-plumaged males congregate in a 

 tree to hold a dancing-party, as it is called by the 

 natives ; and here flying about, raising their \Yiiigs, 



Fig, 50. 



Kupicola crocea, male (from Brehm). 



elevating their exqnisite plumes, and making them 

 vibrate, the whole tree seems, as Mr. Wallace re- 



82 'Journal of E. Geograph, Soc' vol. x. 1840, p. 23G. 



