Originally Posted by
longshot
There is also that almost ‘universal to all mammals’ reaction to seeing something, dogs, cats etc do it and humans do too, it’s exaggerated when we are really concentrating on trying to get something and I think prey animals are tuned into this. They know when ears prick up or eyes lock on.
If you have a strong emotional response when you do see a deer, and your body twitches accordingly, the deer will know you have seen it and be gone. I think this is why it can often be easier to get within 15m of a deer that you haven’t seen than it is to get within 50m of a deer that you’re aware of.