Yes, coons are very bad here...They can drown a dog...my grandpa used to raise Blue Tick hounds, for hunting with. One of his was drowned by a coon. Mean and nasty critters! We want to dig the pond out largerm and deeper...maybe then we will get a few more ducks, and try again! They will have an Island...but coons are great swimmers...so, will have to just waite and see.