Fig. (1) Males of Carduelis species targeted for analysis. a) C. x. stejnegeri (Photographed by Fabian Beltrán at Botanic Gardens, La Paz, Bolivia) [11]. Adult male, female and juvenile characters and their distribution in [12] b) C. xanthogastra [11, 13]. Adult male, female and juvenile description, status, habitat, behaviour and their distribution in the study [12] (Photographed by A. Arnaiz-Villena. Bird from Valencia, Venezuela) c) C. atrata [11, 14]. Description adult male, female and juvenile characters and their distribution in the study [12] (Photographed by A. Arnaiz-Villena. Bird from La Paz, Bolivia).