I have to agree about the cold fronts and rain. However, you have a chance to harvest a bird no matter what the weather, at least here is Wisconsin. I took a 22 lb. eastern three years ago in the middle of a hail storm. I don't know who took more damage, the bird or me. Also, I have found that in regards to the mating period, I believe that the temperature doesn't play as much of a factor as the length of daylight.