Honestly animals in the wild would add so much more life to this game. They do have crows but nothing else. Just a random monkey or rats would kinda make this game seem like there is way more going on. In the last of us I was really surprised they added wildlife. It made the game seem more open and life like. It doesn't have to be anything insane like lions taking down a fallen or anything.
Although a hive lion would be pretty cool.
But really organics make games seem so much better even when it sucks.
"These damn invisible walls are so Laaam... wait what's the rabbit doing over there?"