As I sit in the forest, almost daily, one of the noisiest animals is the Chipmunk.
From Wikipedia, "Chipmunks have also been referred to as "ground squirrels" (although the name "ground squirrel" may refer to other squirrels, such as those of the genus Spermophilus)."
The Species common in my region is the Eastern Chipmunk, with the Scientific Species name Tamias striatus - in the Eastern U.S.
This time of year, I watch these little creatures go back and forth on the ground, taking the same route, to gather up food to take to their Den for storage.
From Wikipedia again, "Chipmunks have an omnivorous diet primarily consisting of seeds, nuts and other fruits, and buds. They also commonly eat grass, shoots, and many other forms of plant matter, as well as fungi, insects and other arthropods, small frogs, worms, and bird eggs. They will also occasionally eat newly hatched baby birds."