Terry I've gone anywhere from Sept 1-Nov.15 and only saw bucks fighting and that was mid to late sept., but never any doe activity. I'm going 3rd week in Sept this year again, I like the cooler weather and it can be very warm in beginning of sept. Nov. is beginning for the rifle hunters, after that those boys are pretty spooky. Get high and glass yor butt off, the windier it is the better and by some bearsfeet from cabelas, they go over your boot and stalking is much quieter and it beats socks cause they have a lot of cactus out there. I'm sure FerretWyo. will give you the run done but if you need more info pm me, I hunt the foothills and plains. Good luck