Thanks for the comments. It was a pretty creepy thing to find outside my back door. She was pretty calm though and let me try for quite some time to get a good pic. I eventually decided it would be a bad idea to just leave her there for the rest of the family to find (she wouldn't have lasted long then and chances are I wouldn't have either for letting her stay there) so i moved the box out to the field and let her go from there. Even though she just stood there while i moved the box, I got a little uneasy when I got out to the dark and couldn't see her anymore...but it all ended well and I just have to assume that her and her babies lived a long happy life. 