We have a pair of Great Horned owls nesting near my chicken coop. We are thrilled to have the owls so close but I wonder if they will pose a threat to my hens. I have large breeds. Obviously, the hens are locked up tight at night, but would the owls be a threat early evening as my girls are going to bed? Or during the day if the hens are out free ranging. We have had barn owl nests for years without incident. I have no intention of harming these beautiful birds, but would appreciate your experience. Thank you.