1. Any of several birds of paradise of the genus Epimachus of New Guinea, having a long curved bill like a sickle.

2. Either of two hummingbirds (Eutoxeres aquila or E. condamini) of South and Central America having similar bills.

3. Any of several other birds with similar sharply curved bills, such as Falculea palliata, a passerine bird of Madagascar.