Eleothreptus
Eleothreptus is a genus of South American nightjars in the nightjar family Caprimulgidae.
Taxonomy
The genus Eleothreptus was introduced in 1840 by the English zoologist George Gray with Amblypterus anomalus Gould, 1838, the sickle-winged nightjar, as the type species. Eleothreptus was a replacement name for Amblypterus that had been used by Louis Agassiz in 1833 for a genus of fossil fishes. The genus name is from Ancient Greek ἑλεοθρεπτος/heleothreptos meaning "marsh-bred" from ἑλος/helos, ἑλεος/heleos meaning "marsh" and τρεφω/trephō meaning "to nourish".The genus contains the following two species: