Rivero's barn owl (''Tyto riveroi'') is an extinct species of

barn owl The barn owl (''Tyto alba'') is the most widely distributed species of owl in the world and one of the most widespread of all species of birds, being found almost everywhere except for the polar and desert regions, Asia north of the Himalaya ...

that was very large — bigger than any extant barn owl species, and possibly larger than any known owl alive today. It is thought to have been nearly as large as (but probably not as tall as) another extinct gigantic owl, ''

Ornimegalonyx The Cuban giant owl or giant cursorial owl (''Ornimegalonyx'') is an extinct genus of giant owl that measured in height. It is closely related to the many species of living owls of the genus ''Strix''.Feduccia, Alan (1996) "The Origin and Evoluti ...

''. Suárez and Olson demoted ''T. riveroi'' as a junior synonym of ''

Tyto pollens ''Tyto pollens'' is an extinct giant barn owl which lived in the Bahamas during the last Ice Age. Description It is only known from the partial remains of three individuals which have been collected on the islands of Little Exuma (the site was mi ...

'' in 2015.

References

Tyto Pleistocene extinctions Fossil taxa described in 1972 Extinct animals of Cuba {{Strigiformes-stub