This pair of mallards was very shy when I walked by them along the Des Plaines River, unlike most city park ducks which makes me believe that they are migratory. The male has a band in his right foot which strengthens my belief. I spotted a number of wood ducks on this walk but I wasn't quick enough to snap any pics before they took flight. Wood ducks are a beautiful sight, though it's odd to see ducks perched in the trees 30 feet up!