I could swear when I first got Skyrim I could shoot the birds out of the sky at Solitude.
I know I can shoot the crows from dawnguard as I have ingredients i have collected from them.
Maybe I am mixing the two memories and just imagining I did shoot the birds.
I was wondering about what creature run combat code and or are actually "thinking" actors (or not).
So from a few minutes of testing I think I see that:
Most fish do not but the slaughter fish do.
Most Birds do not? But the Crows do.
All insects that are smaller than "a bread box" (more or less) do not.
By the way, there are small ANTS marching (crawling) in a line on a tree stump near riverwood, is this the ONLY one? I have not been able to find another. Has anyone else?