sicklebill /ˈsɪkəlˌbɪl/

• 1. 

  N any of various birds having a markedly curved bill, such as Falculea palliata, a Madagascan bird of the family Vangidae, Hemignathus procerus, a Hawaiian honey creeper, and certain hummingbirds and birds of paradise 镰嘴鸟