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The black-thighed puffleg (Eriocnemis derbyi) – also known as Derby's Pufflegs – has black feathering around its legs which is unique among the pufflegs. The pufflegs are small to medium-sized South American hummingbirds that were named for their distinctive dense feathering around their legs known as "leg puffs" - which are unique among the pufflegs. It is found at humid forest edge and ravines in the Andean highlands of Colombia and northern Ecuador. It is threatened by habitat loss.
Black thighed pufflegBlack thighed pufflegBlack thighed puffleg hummingbirdBlack thighed puffleg hummingbirdBlack thighed puffleg hummingbirdBlack thighed puffleg hummingbirdBlack thighed puffleg hummingbird