Most hunting trips give you one thing to do. A mixed bag week in Argentina gives you three or four, and rarely in the same place twice. One morning you're in a marsh blind watching teal come in fast and low while the big ducks circle the decoys. The next you're behind a pair of pointers, waiting on a perdiz to break from a fallow field. The afternoon after that, doves and pigeons trade over a grain-field roost until your shoulder tells you you've had enough. The season runs May through August, your chance to trade the summer heat for some of the best shooting in the country.