My cat I have is quite the mouser. No mouse survives more then a day. She watches outside the window at every bird in the trees. Really worries me. I live next to a busy road but I have three acres behind me for her to explore. I am not worried about the traffic I am worried about her many gifts she will be giving me in the form of dead animals. Should I let her out or keep her in and entertain her with various toys and the like. She also runs around the apartment any time she wants so she has space. But she is meowing at all the birds that are now visiting the yard. I live on the second story so she can see everything.