Last night the dogs started going crazy outside my husband and son and I all ran out to see what was going on and there was a opossum right beside our chicken coop. My husband killed it and then buried it. This was around 9:30pm Then at about 12:30 they went crazy again I got up looked out the window with the flash light saw nothing and was gonna go back to bed they went crazy again so I walked out the side door and stuck my head around the side of the house and there was another one right beside the dog house they chased that one away my little chihuahua Rudy went after it and kept biting it's butt and then he would run and then go right back and bite it's butt again If I would not have been terrified for him I would have laughed. I have only had my chickens for a few months. Will they keep coming now that they know they are here and although I think my coop is pretty safe and secure can they chew through wood to get to my chickens and will they kill them?The only whole is a small hole in the bottom floor board but it is really small hole but it is sitting on the ground so I don't think they can get under it but just in case how small of a hole can they get in?