Our solutions are three months old now, and will be big enough to do their job next spring. I know it's not humane as such, but it is nature's way.
Polly, the veteran cat is still woking, but she;s only three teeth, which slows her up a bit, and she prefers to be sleeping these days, when the youngun's let her!!!!
We have yellow necked mice here, which are not common, but they attack the hen corn, so we haven't got room for them.

Cheers,Bron.