The astrapian sicklebill, also known as the green-breasted riflebird, is a bird in the Paradisaeidae family that was proposed by Erwin Stresemann to be an intergeneric hybrid between an Arfak astrapia and black sicklebill, an identity since confirmed by DNA analysis.^[1]

Only one adult male specimen of this hybrid is known, held by the American Museum of Natural History, and presumably deriving from the Vogelkop Peninsula of north-western New Guinea.^[2]

• Frith, Clifford B. & Beehler, Bruce M. (1998). The Birds of Paradise. Oxford: Oxford University Press. ISBN 978-0-19-854853-9.
• Thörn, Filip; Soares, André E. R.; Müller, Ingo A.; Päckert, Martin; Frahnert, Sylke; van Grouw, Hein; Kamminga, Pepijn; Peona, Valentina; Suh, Alexander; Blom, Mozes P. K.; Irestedt, Martin (2024-06-08). "Contemporary intergeneric hybridization and backcrossing among birds-of-paradise". Evolution Letters: 1–15. doi:10.1093/evlett/qrae023.