Last year I had 75 chickens in my coop. I went out one morning to feed them and about 15 were dead. I checked them out and figured out that a weasel got into the coop. So I went back into house for lunch and went back out about a half hour after I was out there last and 45 more were dead! Just in a half hour! I then patched up every single hole I could find, put plywood over all the windows and I went back that night and only 3 were left of the 75. So now I am wondering if weasels will come back to the same coop the following year or was it just bad luck. Any thoughts? Thanks.