1917.] 



Chapman, Distribution of Bird-life in Colonibia. 



137 



Fig. 15. Distribution of the Cock-of-the Rock. A Subtropical Zone species represented in the West Andean 

 Subtropical Fauna by one form (Bupicola peruviana sanguinolenta) , and in the Central and Eastern Andes by 

 a closely related but distinct species (/?. peruviana aurea), the ranges of which are separated by the Temperate" 

 Zone of the higher intervening mountEiins. ^ 



