This video from Indiana in the USA says about itself:
Female Barred Owl Returns to Brood Growing Owlets – Apr. 18, 2017
Watch as the female Barred Owl returns at dawn to brood her three growing owlets.
The three eggs hatched on April 6, 8, and 10. The Barred Owls‘ sole focus for the next 4–5 weeks will be to provide enough food and warmth to their owlets as they grow old enough to venture into the wild beyond the nest box.
Watch live here.