The Stygian Owl is a medium-sized to large owl with long prominent ear-tufts.
It is found in parts of north-west and east Mexico, parts of Belize and Guatemala, in Cuba and the Isle of Pines, Hispaniola, Colombia, Ecuador, north-west and south Venezuela, south and central Brazil, all over Paraguay and north Argentina.
The Stygian Owl is surprisingly poorly known for such a large and widespread owl.
It is essentially nocturnal and during the day it roosts in dense vegetation.

Zapata National Park, Cuba, 10 January 2016