Western Gray Squirrel

Small grey squirrels. The mother seemed to have black around her mouth but I could not tell if that was stained or her fur color. They live in the trees in our neighborhood. It seemed that at this time the mother was trying to teach her young to jump from the branch to the fence. There was a lot of chattering from the mother and the children did not seem to want to go the way the mom went. She later took them a different route across a branch that leans on the fence. I think I have the right species identified here, but happy to take corrections.