Chocobos are generally depicted as yellow-orange birds with three-toed feet, large wings and long necks. Later games have made the yellow variety the common breed and introduced other types characterized by different colors. While the yellow chocobo is flightless, stronger breeds can swim and fly. Common variations include the black chocobo, red chocobo, blue chocobo, and the chocobo breed universally regarded as the strongest, the gold chocobo.