Phoenix feathers can be grabbed from the desert phoenix north-east of the River Elid, by the clay mines. One feather at a time can be plucked from the bird's tail, but the player may fail, in which case the phoenix stuns the player and does a small amount of damage. Players do not kill the bird when plucking feathers. When a feather is successfully plucked, the player earns 26 Thieving experience points.
A phoenix feather is used in The Golem quest, where it is used on black mushroom ink to turn it into a phoenix quill pen.