Works great outside too with mice, chipmunks and squirrels. We use a 10 gallon bucket though and use sunflower seeds floating on the water. I did the dry bucket in the barn too putting it up next to a 2X4. I don’t think I even used any bait, they just fell in one after another, had the bottom of the bucket covered in a few days. Gross but effective.
There are 10 gallon buckets?
Never saw them at the hardware store.
I use water and drown them because I understand that they will eat each other.
I understand people use antifreeze in outside buckets.
Yuck