Here's a picture of a Muskovy Duck featuring selective coloring. The red wattles around their bills distinguishes these ducks. I accentuated that trait using this post-processing technique, turning the rest of the photograph into black and white. By the way, these ducks are common here in Tampa and other parts of Florida. They often roam freely around yards and neighborhoods. This is a picture of Larry, as the kids in our neighborhood call him.