As a general rule, your suburban, garden-variety squirrel is not going to be particularly wary of humans. But if you are having garden troubles and you don’t seem to see any signs of squirrelly interlopers, then Bonnie Plants recommends looking for a few telltale signs.
First, look for golf-ball size or smaller holes in freshly planted garden beds. Squirrels are opportunists who love to dig up seeds, especially if the earth is recently tilled and easily accessible. If you have fruit plants, berries, apples, or tomatoes you may see bite marks on some or all of your fruits. Squirrels are renowned for taking a bite off everyone’s plate but finishing none of it. They also enjoy beans, cucumbers, squash, and eggplants.
Squirrels are unabashed nibblers and their flat, ever-growing teeth are fond of chewing on herbs, flowers, seedings, and any other non-toxic plant you might happen to have growing in your yard. If you’re noticing any or all of these things, then all signs point to squirrel.