For what it's worth, I took a wild chicken completely through the headlight when I was stationed in Guam. I was going up Nimitz Hill at about 60 when it flew out of the jungle and wham. It stopped at the battery however. Looked pretty funny when I got to work. Two feet sticking out of the headlight bucket. After that, I put some lexan covers over the headlights.

Once also took the head off a wild chicken with my spoiler on another car. Hit the bird, looked in the rear view and it was doing the "funky chicken" and spurting blood where head used to be.