The term 'Peacock Tail Marking' refers to the eyespot pattern found on the tail feathers of peacocks. The eyespot is a 7 letter word, which is often referred to as an eyespot. This pattern is used by the peacock to attract potential mates and to ward off predators. The eyespot is made up of concentric circles of color, usually black, blue, and gold. The eyespot is thought to be an evolutionary adaptation that has allowed the peacock to survive in its environment.