Why The Left Wing Of A Goose For A Shuttlecock?

Why The Left Wing Of A Goose For A Shuttlecock? “The contours and curvature of the left feathers allow the shuttle to spin and fly more consistently,” he said. “Lower-grade shuttles are made with other feathers from a goose or even duck feathers, and then formed to match a left-winged feather.” Why are shuttlecock feathers