The Coucal is a large black bird with very red wings. In the non breeding state there are light streaks around the neck. It hides in the underbrush where there is not enough light to photograph it.

adult

non breeding
Langrand, Olivier; 1990: Guide to the Birds of Madagascar, Yale University Press
Sinclair, I & Langrand, O.; 1998: Birds of the Indian Ocean Islands, Struik