In reply to TheDrunkenBakers:
> So Im after a robust device or two which will worked perfectly well time after time. I'd rather not kill them but I'm afraid that this really is the only option so catch and release arent of interest.
I'd rather not kill them either but having caught one in a catch-and-release trap marketed as a 'humane' trap once a few years ago, I came to the conclusion it was anything but humane. The mouse was soaking wet, obviously knackered and traumatised, and was almost certainly going to be caught and killed by something not long after I released it anyway. The trap had been left overnight, so the mouse could have been in there for anything up to about 6 hours.
Since then when I occasionally have a mouse I've been using cheap, traditional 'Little Nipper' wooden traps. And whenever I've caught a mouse in one of those it's been a healthy, happy looking mouse if you see what I mean (apart from being dead, obviously). I've tried a couple of more modern looking plastic ones - hopeless. They don't seem to be sensitive enough - the mouse doesn't get caught but it does get fed!