While taking a short hike on the Grand River trail in Kitchener I came upon this male mallard duck dunking its head in and out of the water of small pond near the river. I wasn't sure what the bird's motivation was. It didn't seem to be feeding. The motion of the duck was causing a gentle ripple on the otherwise still water. I took this picture as the late evening sun cast shadows from nearby cattails and gave the water an golden glow.