Crested Ducks, ChileThis subspecies of the South American crested duck lives only in Argentina, Chile and the Falkland Islands. They tend to occur in pairs rather than larger flocks and can be quite territorial. That bit of color on the wing (the speculum feathers) changes from a maroon-ish/orange to green depending on how the light is hitting it. In this shot I was able to capture the color extremes. Photographed in Puerto Natales in southern Chile. Nikon D500 with Nikkor 200-400mm lens (at 400mm) ISO 100, f/4 at 1/500th of a second.