Summary description from Wikipedia:

Eleothreptus in languages:

Bokmål

Sigdvingenattravner

English

Sickle-winged and White-winged Nightjars

Finnish

sirppikehrääjät

Russian

Серпокрылые козодои

Parent Taxon

• Caprimulgidae

Sibling Taxa

• Antrostomus
• Caprimulgus
• Chordeiles
• Eleothreptus
• Eurostopodus
• Gactornis
• Hydropsalis
• Lurocalis
• Lyncornis
• Macropsalis
• Nyctidromus
• Nyctiphrynus
• Nyctipolus
• Nyctiprogne
• Phalaenoptilus
• Setopagis
• Siphonorhis
• Systellura
• Uropsalis
• Veles

Child Taxa

• Eleothreptus anomalus
• Eleothreptus candicans

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