You essentially will need to learn travel patterns and how they relate to weather and pressure. You can get some of that off of googleearth I suppose, but mostly footwork and time is the best option. Eastmans advice or that other fella, Cameron, I believe preach to hunt the same area for about 4 years before you figure it out. There is some sound advice to that. I find most folks that lack success lack patience and due diligence. This generation more than ever are after the quick fix and aren't willing to put in the time, money and energy. Some get lucky right out of the gate, but I find that most that have continual luck are those that invested a lot of time on the hoof out there. Working harder is not necessarily the correct answer. Sometimes working smart is the answer.