Peacocks are known for their striking physical appearance, particularly the males, which are adorned with vibrant plumage. The most notable feature is their long, iridescent tail feathers, or 'train,' which can span up to six feet in length. These feathers are decorated with eye-like patterns, known as ocelli, that shimmer in various colors, including blue, green, and gold. The body of the peacock is typically a rich blue or green, and they have a distinctive crest on their heads. Females, or peahens, are less colorful, sporting more muted browns and greens, which help them blend into their surroundings, especially during nesting. This sexual dimorphism plays a crucial role in their mating rituals, as the males display their extravagant feathers to attract females.