The crossword solution for the term PEACOCK FEATHER FEATURE is EYE, which is a three-letter word. The EYE feature of a peacock feather is one of its most recognizable characteristics. Peacock feathers are known for their vibrant colors and intricate patterns, with the EYE feature being the most prominent. The EYE feature is a dark circle surrounded by a ring of color, usually blue or green. It is believed that the EYE feature of the peacock feather is a form of camouflage, as it helps the bird blend in with its environment.