Just happenned to see the program, "Deer and Deer Hunter", last night and they were talking about how the atmospheric pressure plays a key role in deer movement. It stated that when the barometer is between 29.4 and 32.6 the deer are most active. The program also stated that when the pressure is going up or down in this range the deer will most likely be moving. Just dumb luck to see a program on what I learned from my grandfather decades ago.