Bird of paradise plumes are often used as part of ceremonial dress. They were also much prized in Europe in the 19th century and traders and shooters came to PNG seeking bird of paradise skins. 38 of the 42 known species are found in PNG. Of these, 12 are found only in PNG. All species are protected. PNGans are allowed to hunt them using traditional weapons but their sale to foreigners is prohibited. The Raggiana bird of paradise appears on the national emblem and the national flag.