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(honeycreepers), a family of birds of the order Passeriformes. The birds have a number of adaptations enabling them to feed on nectar from flowers: the bill, used to pierce the flower corolla, is sharp, and the tongue is grooved or has a little brush on the end. There are 36 or 38 species, distributed in forests in Mexico southward to Argentina. The cup-shaped or spherical nests are built in trees. Besides feeding on nectar, honeycreepers eat insects, seeds, and fruits. They are often kept as cage birds. Taxonomists no longer classify honeycreepers as a separate family: some species are assigned to the family Thraupidae, others to the family Compsothlypidae, and one species to the family Fringillidae.