I would say that "Hunter Pressure' causes them to be nocturnal is a myth...once the Rut is on is they will move regardless. But having watched this bush for over 20 yrs, I don't know if it's our large coyote population or they stay in the bush during the hot days but I rarely see Bucks ( Does are different) in the daytime year-round on trail cams and I have in lots of different areas.