Birds of Paradise hybrids – Astrapian Sicklebill

The exceedingly beautiful Astrapian Sicklebill is known from exactly one single specimen.

The form, also known as Green-breasted Riflebird, was described as a good species in 1897, it is however, a hybrid form with the Arfak Astrapia (Astrapia nigra (J. F. Gmelin)) and the Black Sicklebill (Epimachus fastuosus (Hermann)) being the parent species.

It is somewhat strange that the same species are thought to be the parents of a very distinct form, Elliot’s Bird of Paradise (Epimachus elliotti Ward).

Depiction from: ‚Ernst Hartert: Notes on the Paradiseidae figured on plates VII. and VIII. Novitates Zoologicae 18: 604. 1911‘

(public domain)

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References:

[1] Clifford B. Frith; Bruce M. Beehler: The Birds of Paradise: Paradisaeidae. Oxford University Press 1998

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edited: 11.03.2020

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