It's important for "chicken people" to know that an opossum may kill your chickens. I didn't believe it till I saw it. My favorite hen, whom I hatched myself and raised, was partially eaten alive by an opossum. I heard her screaming early in the morning and went out there to find an opossum had cornered her and was eating her from the bottom. I chased it away and she died the next morning. I'm never going to permit an opossum anywhere near the coop again. When I see them in the yard, I hit them with the water hose and certainly do everything I can to make sure the ones in the coop are protected. This and finding a black snake curled up around a chicken's legs are what has driven me to stop having chickens in the first place. So much loss. So many deaths due to predators including my own dogs. Our efforts to predator-proof the coop and be mindful of things that might attract predators have gone for naught.