Since early January I have noticed that sections of twig being removed from limbs of a row of little leaf linden trees. I took advantage of some nicer weather and thought I'd take some photos of the injury. I caught this gray squirrel as he was peeling the bark from the twigs. He was gracious enough to pose for me on a red maple that he may have stripped a bit earlier. January and February is the middle of winter breeding season for gray squirrels. A second breeding season occurs from May to July. Unfortunately, there is little that can be done to prevent gray squirrel damage to trees, other than not feeding them, or removing their nests.