Last night I left a 5 gallon bucket out with a few inches of milk in it. This morning there were 2 little possums wallowing in it. Not babies, but fairly small. Like little kid possums. What kind of damage can they do to birds? My birds are currently sleeping in a wooden barn stall. They free range in the pasture all day while we're out there working. Then at night I lock them in the barn. There are 12 turkeys, about 3 months old and an assortment of ducklings and goslings not quite fully feathered out, waiting for their house to be completed. So far nothing has bothered them, I've never even seen any predators here, but I got to looking today and I don't think it'd be too difficult to dig under the boards to get in. How bad do I need to freak?