I was once on a rile range, 200 yards. We were all using large-ish calibre weapons for zeroing. A young Sika Deer buck appeared at one side of the range, right at the butts where the targets were and 8 rifles all swung directly to it at the same time...was hilarious. "Don't even think about it!" says the Range Officer.
Had a wood pecker sit on my target a few years ago whilst setting up a new scope on an air rifle i could not believe it as i didnt even know we had any. Watched it through scope for a minute or so then off it flew.