There are two bird of paradise groups called sicklebills, though they are actually quite different.

There are two bird of paradise groups called sicklebills, though they are actually quite different. The first are in genus Drepanornis, and are distinct in how normal they are socially. While most birds of paradise eschew territorial norms in favor of lek mating systems, Drepanornis maintain a traditional territory like most other songbirds.

Drepanornis bruijnii is named for Alfred R Wallace’s assistant, the Dutchman Antonie Bruijn.