It’s common to see chipmunks running around and darting up and down. It’s not common to see them doing it together! Chipmunks generally do their own thing. They spend a lot of time foraging for food and storing food supplies in their impressively designed and built dens. They are territorial and will defend the entrances to their homes. Their solitary lifestyle is interrupted just a couple of times per year when they meet up to mate.
When I noticed one of these meet-ups outside my window in late spring, I giggled at what looked like a double-date going on. I giggled again when I read that male chipmunks are called bucks and females are called does!
Note: Their young are not called fawns! Female chipmunks (does) care for their pups (sometimes called kits) for a few weeks until the young are able to leave the burrow and forage for themselves. The adult chipmunk’s solitary lifestyle resumes until it’s time to breed again.