Get yourself a 22 pistol with adjustable sights. Sight it in with 22 shorts or CCI 22 CB long. 50 ft distance is plenty for targeting it too.
I use to keep a pistol in my stand with me for birds in 22 cal. Most of the time I'd see a couple birds at the very least walking around on the forest floor during deer season. Definitely a nice treat for supper they make.. Until I started seeing Gray Wolf. Now its something more suitable for the purpose.