The peacock is known for its colorful tail feathers, which are referred to as a "train." These spectacular feathers, often displaying iridescent hues of blue, green, and copper, serve as a form of courtship display, attracting potential mates. Besides their aesthetic appeal, tail feathers provide peacocks with the ability to be more visible and assert their dominance during mating rituals, making them one of the most iconic and stunning birds in the animal kingdom.