What kind of air rifle do you have?
I have a Gamo Master Hunter in .22. It takes birds and small game with ease.
I really want one of the Savage .22/.410 combos, but they don't make them any more and they're stupid expensive.
I actually inherited one of these old Savages. It needed a new stock, and had a broken firing pin on the .22, but since it's been fixed, it is fun as all get out to shoot, and effective as well.
Greg