This pair of Mallard ducks (Anas platyrhynchos) was photographed at Melton Hill Lake in Oak Ridge. When the male is situated at the right angle it is easy to see the spectacular blue-green hue from the refracted light on the feathers of the head. Female mallards are drab brown, well camouflaged from predators when they sit on their nest. They (and the many other ducks and geese) didn't stick around long when the realized they weren't going to get fed! Feeding wild animals human food (bread!) is bad for their health and in some cases can be fatal.