84 



SEXUAL SELECTION: BIRD& 



[Part IL 



throwing uj) its head, or opi'iiing its tail like a Ian; now 

 strutting about with a hopping gait until tired, when it 

 gal)hled some kind of note, and was relieved by another. 



Fig. 50.— Rupicola crocea, male (from Brelim). 



Thus three of them successively took the field, an<i then, 

 with self-api)r<)bation, withdrew to rest." The Indians, in 

 order to obtain their skins, wait at one of the Jiieeting- 

 places till the birds are eagerly engaged in dancing, and 



