As for the use of manufactured blinds, Larson notees that there are two mistakes hunters often make. "First, they have a false sense of security. Hunters think they're invisible, but nothing could be further from the truth. You've got to keep your window openings at a minimum and move the same as if you're in a tree stand," he says. "Second, everyone knows to place branches around the blind to break up its outline. But almost everyone forgets to cover the bottom edge. If it isn't broken up, it shows a distinct line that doesn't look natural. It will spook deer."