Hemiprocnidae


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Noun1.Hemiprocnidae - tree swifts
bird family - a family of warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
Apodiformes, order Apodiformes - swifts; hummingbirds
crested swift, tree swift - birds of southeast Asia and East Indies differing from true swifts in having upright crests and nesting in trees