That said, I have seen deer do crazy things. For them to walk around looking up, I don't think so IMO....for them to sense something wrong, and then look around INCLUDING in the trees, heck yes.
Well I hate to break It to ya Trevor but I've seen It countless times myself as well.
I've watched doe's and fawns come walking down the trail and look up Into tree's. Years ago I never seen them do It and I hunted 10 times more then, then I do now. I swear It's bred In them now. I know for a fact that we have 3 times the hunters where I live and hunt then we had before, that's the reason IMO they now look up. It's pretty sad when you see a fawn walking by herself and she's also looking up In the tree's, she learned It from her mother, I know that much.l