Honey bees take over a barn owl cavity

A cam I've 'monitored' for about 10 years in Orange County, southern California, on an Audubon Ranch.

This is a cavity formed when a limb fell out of an elderly eucalyptus tree, Barn Owls have been breeding in it for longer than I've been watching, the owlet in the video is one of 5 recently fledged.

Once those bees make up their minds... they're quick! Astonished