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These birds have mobile outer toes, which they are able to rotate forward or backward. Turacos are the only birds to possess true red and green color. When you look at most birds, the color you are seeing is a reflection produced by the feather structure. The turaco's red pigment (turacin) and green pigment (turacoverdin) both contain copper. In fact, if you stirred a glass of water with a red turaco feather, the water would turn pink! In museum species, the pigments deepen with age because the copper begins to oxidize. Pictures were taken at Artis, zoo of Amsterdam.