after living on the farm for 10 months and not seeing a single one in the past 2 days ive seen a weasel twice, how much of a problem will it be to my hens? the sheds secure and weaselproof but the run isnt and its been during the day both times ive seen it. i know they are bloodthirsty little things but would they steer clear of the chickens as the dogs are in the garden frequently??