There are a lot of critters in Stardew Valley, but some players may not see them often (aside from butterflies and the occasional birds). That's why the Wild Animals mod was made.

It is a very fun mod with many animals that roam your valley. They tend to wander around the places that you can access, so you may or may not lose sight of some of them.

The animals are added to multiple places in-game depending on the time, weather, and season.

They don't really do much of anything and are more of just moving décor for your valley that occasionally makes noises.