A bird's feathers represents more than just gaudy plumage. In many cultures across the globe, feathers are believed hold spiritual power, as such, they are integral parts of many tribal rituals. From as far back as the early days of mankind, humans have always valued feathers for their beauty.
Professional certification, trade certification, or professional designation, often called simply certification or qualification, is a designation earned by a person to assure qualification to perform a job or task.
professional. 1  of, engaged in, or worthy of the high standards of a profession. 2  designating or of a school, esp. a graduate school, offering instruction in a profession. 3  earning one's living from an activity, such as a sport, not normally thought of as an occupation. 4  engaged in by professional players: professional hockey.