Last night my hubby and I was working on our shed, replacing the floor and hubby said it flew behind him, reflecting the shadow on the coop wall from the street light. It was sitting on the power lines and watching all of us. Not sure if they are a threat but it was unafraid of people standing around, taking pictures. When we got done, it was still sitting there. I took some pictures but it was mostly blurry. I believe it was a Barred Owl but we live IN the city but not sure if it is common for them to be around. http://www.owl-pictures.com/barred_owl.html I know my girls were sitting on the perch waiting for us to get coop done and they were nervous, understandably so. Would they consider to be a threat? We have a green snow fence on top of the run. It would be very nasty if the owl got into it. We were having problems with field mice and sewer rats under our coop and one got away when we pulled the floor off from the concrete pavings. Now the floor is on concrete blocks to deter them from making their home under the coop.