Many times, deer, elk, mountain lion, cows, cats, dogs, rabbits and porcupines off the top of my head.
Some that stand out the most.
One time, much like you there were five or six deer standing in the road. As I approached at about 65 MPH all but one took off for the side of the road. The smallest one ran in the direction we were going, I have never hit the brakes so hard before. Thanks to anti-lock breaks, I only nudged her ass. She was fine but my mom and I were quite shaken.
Another time while riding my motorcycle on the highway, I had to dodge a pigeon that flew for my head. It missed me but grazed my friends head that was on the back. It was all I could do to keep the bike under control.
The best and possibly the worst one was with a cow. We were in the mountains of Colorado racing down a old logging road in a sand rail. Coming around a sharp turn we came face to face with a very large cow standing in the road. Now for those that don't know, a sand rail is basically a roll cage on wheels. No bumpers, no wind shield and you are totally exposed. If we would have hit that cow, we would have hit it at the shin's and had a cow in our laps.
Ah the joys of driving in the country/mountains.