I fill mine when theyre empty and check my cameras when i want to. Theres grown deer coming to them every day, or night rather. I have no idea how to get a bunch of deer to come out in the middle of the day. I figure thats the real question behind the question here. I think its just a little too populated with people where i hunt. Around here alot of deer will come out late in the evening. Quite a few will linger around the first few minutes after daylight. Some will come out for a bite in the daylight hours. Only pattern ive noticed around here is more deer move when its quiet. Usually, if youre gona see bucks out cruising in the daylight around here, itll be right after the bus runs and everyone has gone to work. Theres a couple hours of quiet time before the people who stay home during the day usually get out. Thats when ive seen the most buck movement during the day, other than that its just low light times. I have no idea how it works in the big woods.