Ogygoptynx is an extinct genus of owl from the Paleocene.
References
Rich, Patricia Vickers & David J. Bohaska, 1981. The Ogygoptyngidae, a New Family of Owls from the Paleocene of North America. Alcheringa 5: 95-102. (PDF)
Sankar Chatterjee. The Rise of Birds: 225 Million Years of Evolution, Pg.251.
James R. Duncan. Owls of the World: Their Lives, Behavior and Survival, Pg.72.