There is no October lull, if you define the lull as a true decline in deer movement. Every piece of science-based data I’ve read on the topic says, in fact, that throughout the month of October whitetail movement steadily increases. That’s right. Every day of October brings increased levels of movement by whitetails, including mature bucks. So why is this notion of an October lull so universally accepted? Well, I suppose it’s because folks see fewer deer during this mid-October time period.