Spotted critter in my yard, looks like chipmunk/squirrell cross
Out of nowhere there are these small critters living in our yard. I don't know what they are. They are a rodent but they are bigger than a chipmunk and smaller than a squirrel and resemble both. Their tail is short and furry but not as fluffy as a squirrel or They are brown and their backs have stripes the length of the body and spots too. They live in the ground. They laying in the shade of one of my pots, they will lay on their stomach and their body is pretty long, about three inches.
I live near forest, prairie and swamp. I feel like I should know what these are but I've lived in the city most of my life and recently moved out to the country. For example I just saw my first red-winged black bird in the last two years. Saw my first house finch the other day.
Should I be concerned about these little guys or will they leave me, my house and my plants alone?