I've had the good fortune to have never hit anything bigger than a raccoon. Mostly that's because you rarely see anything big other than deer here in the rainy Cascade Valley. The other thing is that I have high situational awareness, constantly scanning both near and far due to having developed those habits riding a motorcycle.
I wonder what capabilities vehicles have avoiding wildlife? A recent demonstration of Tesla's autonomous driving showed the vehicle hesitating to make a left turn, and then a person appeared crossing the road out of nowhere. From the drivers perspective, the person was not likely to be noticed, but the Tesla identified the pedestrian and the intended path of travel despite becoming completely obscured by a parked car.