I was in South Dakota a few years ago and I came across a patch of road where about a hundred Pooks (I think that is what they are called) were congregating on both shoulders. They are the grey waterfoul with the red eyes. We have them here in Seattle. Anyway, there were about 12 dead ones in and around the road. When I passed through they ran across the street and I hit at least four. They weren't too bright either.
I DID slow down because I didn't want to damage my rental car...
There are drivers in parts of PA that go gunning for Canada geese. Personally I think they're beautiful, but they poop up people's lawns and are considered flying rats by the locals.