I Hate MICE!!!!
Usually have problems with field mice in the fall when the weather starts to turn and they try to move into the barn and engine cowlings, etc. for the winter. Put down appropriate "Dcon" or equivalent and take care of problem.
Tuesday I went out to the barn and noticed the kritters running around inside? They're supposed to be outside eating seeds and things now. OK. put down a couple of dcon feeders. Yesterday, went out and started one of the little tractors and saw "little aqua colored pellets" flying down and bouncing on the concrete floor. Yep, they had moved into the cowling AND carried the dcon into the nest.
Maybe the winter we didn't have last year prompted a field mice population explosion or something?