I found out something interesting today. I guess this would take a little more investigation, but it seems that deer can sense when they're being watched. You don't even have to be close to them to be discovered watching them. If you stare at them long enough they know you're there.
I was walking down the side of a small ravine into the valley below, when I saw these deer in the distance. I wasn't being very quiet because I didn't expect any deer around there. Up until now I had never seen more than one deer at a time in this place. There are three in the picture, and probably at least five deer in their herd.
They actually weren't very close to me. They were far away enough that I thought at first they were a couple of boulders. When I focused my eyes I saw that I was seeing a couple of deer grazing in the valley. They had no idea that I was there because I was too far away.
This second picture is a little more like what I saw. The closeup pictures came out unusually good for me. I don't know how I got such good pictures of these far away deer this time. I did have a nice clear view of them though.
Even though they didn't see me walk over here, they looked up as soon as I started taking pictures. I don't have another explanation other than they sensed me watching. If I would have kept walking, I think they would have ignored me.
This isn't the only time this has happened. I've had several other times when deer have sensed me watching them, while they didn't detect me at all while I was walking towards them. You can see other examples here.
This one deer that's looking at me in this last picture was the first one to look up at me. It was also the last one to look away. It just didn't want to give it up. They knew they were far away enough that they weren't in any danger from me, but this one still wanted to keep an eye on me.
I finally started walking again because I had a lot of pictures of them. Then, not being able to resist this opportunity, I stopped again and began taking more pictures. This time the deer decided they had enough of me, so they all turned and walked into the forest.
What do you think? Do you think they can sense when something else is watching them? Or maybe it just took them a few seconds to bother looking up? Either way it was fun seeing them.