Hi. This is the last night I'm going to put up with these mice invasions. Just last night, I refilled Phoenix's food dish (he's in a separate pen) and I find NOTHING but a little dust and mice paws walking all around it. He doesn't eat at night; but she chirps LOUD (and I mean it when I say loud) and unlocking every single lock gets old. We can't put hard ware cloth around it because we need to save what we have for a new chicken coop ( ) and its so expensive. Which trap would be the most effective, or should I buy an airgun? Thanks.