Originally Posted by
hifi_dave
Thanks all for the suggestions.
The building is a single storey barn, possibly 300 years old. They are climbing the timber cladding outside to make entry into the loft. They don't appear to be doing damage there as it is full of boxes and cartons for my stock and none have been chewed - I haven't even seen any poo. They just appear to enter, eat the poison bait or peanut butter in the traps and go, unless the traps get them.
There are numerous points they could enter by as it is an old building but the ones highlighted are just 3 or 4. I will attempt to fill them later today with wire wall and plaster as suggested but they are not easy to get to.
I wouldn't mind if it was just 1 or 2 mice but there must be hundreds. Apparently, the females are often born pregnant and if you leave just that one alone in the loft for a year, there will be 300 of the little sods..:eek: