The feathers serve to stabilize the arrow's flight, somewhat rapidly depending on their length. When you start archery, you do not know how to position your arrow on the string. With 3 feathers, one of which is called the cock feather, which is a different colour to the other two, which are chicken feathers, how should I position my arrow on the string? This cock feather indicates by its different colour code, that it must be positioned towards the outside, so perpendicularly to the target area of the bow. This will enable the arrow during release of the string to move freely...