Giant Coua (Coua gigas, german: Riesen-Seidenkuckuck, french: Coua géant). It is endemic to Madagascar. (1150k)
Here are the pictures of Giant Coua (Coua gigas) with links to the pages on which they appear, links to the full sized picture, and the description of the picture with links to the entry in iNaturalist (inaturalist.org)
All pictures are © Dr. Günther Eichhorn, unless otherwise noted.
Madagascar Birds
Dr. Günther Eichhorn Travel Website
Soaring website