According to deer researcher T.R. Michels, of all the factors that affect deer activity, the moon has the least affect.The amount and location offood, the rut, hunting pressure, and mostly the weather, affects when, where an when deer are most active.But, he says that studies do show that deer, including dominant bucks, are most active in daylight hours (thoughout the year) during the full and last quarter phases of the moon. But the weather will override any influnece the moon has on deer - clouds may counteractsome of the moons influence on deer.