There was a study done in south Texas by a biologist who found that on 1400 acres( high fenced) you could get a picture of every deer with a corn pile every 40 acres. I guess every deer had a ear tag to tell the difference. I hunt 2200 acres 545 crops Ive got 12 Cameras I hang them all over mineral sites an 20 Pd lucky buck mineral blocks. I put them out in late July. The last 2 years Ive regconized about 90% of our bucks that I've filmed while hunting. I always want more but having no 4 wheeler. Checkin 12 is enough for me.