So, I'm driving along on a quiet country road at about 3am and as I approach it a lump of stuff in the road that I'd thought was litter resolves into a young pigeon. It's sitting right in the middle of the lane and I can't slow down in time to avoid it, so I aim right at it to make sure the wheels don't get it, and hope - though not much because I assume that it's going to panic, fly up and get killed...
Nope, I go right over it and looking in the mirror I can see it hasn't moved at all. So I carry on for a bit, pondering, and then turn round and drive back. It's still there.
I roll to a stop level with it, open my door and peer down. I'm so close I could lean out and poke the thing if I wanted to. It looks back, head tilted to one side as pigeons do, clearly unimpressed but apparently uninjured.
"Move, you stupid bird... You're going to evolve out if you stay there"
It thinks about this for a few seconds, moving its head from side to side as it considers me, then grudgingly gets up and wanders off, very slowly, round the back of the car.
I'm now facing the wrong way so I drive down the road a bit, turn round, and head back again... And the stupid bird is back where it started.
I'm not going fast this time so I stop. The bird sits there unperturbed. I flash at it - nothing. I blip the engine - no reaction... So I turn the car off and get out, and as soon as I stand up and it sees I'm a human and not just part of the car the damned thing squarks and flaps off into the trees in complete panic.
A ton of metal driving right over it, loud noises and lights don't frighten it, but I do? Charming...