True I mean it seems to be from deer to deer as to their reaction...we have about a 40 picture sequence of a little 4-pointer nosing around the camera as it took picture after picture after picture of him. Obviously he heard the subtle click and possibly the flash (can't remember if it was one we'd taped over or not). We've also had deer in the picture once and bam gone, some seemingly running during the photo because of it. Again I feel you put it by a food source or mineral lick you're already lessoning the chances of it scaring them to the next county.
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