Black-thighed Puffleg (Eriocnemis derbyi) [XC53628]
by Bernabe Lopez-Lanus from El Bosque, Reserva Zona Alta Rio Quindio, Quindio, Colombia (call)
Black-thighed Puffleg (Eriocnemis derbyi) [XC56031]
by Bernabe Lopez-Lanus from Juntas, Municipio de Ibague, Tolima, Colombia (call)
Subspecies
Closely related to Black-breasted Puffleg (Eriocnemis nigrivestis) and Glowing Puffleg (Eriocnemis vestita). Populations at northern end of range have a slightly longer bill and these were formerly regarded as subspecies longirostris, but variation is clinal.