This works and is basically complete too (the only other occurance of fauna actors is found in Tuscan Acropolis (4) where some fish are actors. The river itself is misleading as ships just can't move more than a meter there, so it's confusing either way with fake, real or no fish in there.

The red fox actor you found on the migration scenario map can be removed, but adding a simulation template would be nice to have too, since indeed the non-animated lowpoly model with a bad texture doesn't look worse than the bear we have on many maps and it will provide new artists some simple tasks.
Also wanted to use that snow fox variant on polar sea, but ran into said issues.