Yes, here in Chicago, along the lakefront, on Northerly Island we saw a huge gathering of crows who were foraging as a flock in the tall grasses and wild flowers that flourished in early October, 2020. Usually we see them in family groupings and the sight of them chatting, playing, and foraging was a delight.
I was surprised to learn that , like squirrels, chipmunks are also omnivores and all of those related cuties are more responsible for nest predation than crows.