Was on the side on the road as I was driving. I turned around and got a photo from my car (it had ducked its head by then) before it slowly walked away.
What causes these cuts
Center sparrow
Rich mesic hardwood forest of sugar maple and basswood. Somewhat unusual to see in this setting in northwestern WI.
Leaves with a variety of shapes, but noticeably many with an inward slanting middle lobe and all more deeply dissected than red maple. Tentatively IDed... this may turn out to just be silver maple.