kolibřík žlutoocasý Boissonneaua flavescens

Medium-sized hummingbird, mostly dark green with obvious buffy underwing and mostly buffy tail. Fairly short, straight bill. Sexes similar. Found in cloud forest from Venezuela to Ecuador, mostly from 1,500–2,400 m. Usually forages in middle to upper levels of trees. Visits feeders, where it aggressively defends its territory against other hummingbirds.