'cause they're plentiful in the hill country of northeast Tennessee and available virtually year-round. Have killed groundhogs every month except January with calibers that range between .22 LR to .270 Weatherby. Typical half-day hunt will result in seeing a half dozen and those you miss will probably be there the next time you're in the vicinity. Range . . . point blank to ~600 yards. And some folks tell me they make good eating.