Well I had an opportunity to test it this afternoon, so I put on a cap and bandana and went out to the usual observation spot and asumed an agressive stance. ALL heads snapped up and zeroed in on me whereas usually I only get a few casual glances from the look outs as the others continue eating. But my dog slipped out behind me and as soon as he realized they were there it was over. I’ll have to try it again without the dog next time.