>>9062339>>9062340Though the paint does have less adhesion to the smooth keratin of the beak, it needs to be manually rubbed off and then coated in a yellow resin, traditionally mixed primarily from tree-sap, to achieve its characteristic bright color.
Sorry I omitted that part, I didn’t want to get overly into the weeds on the involved preparation process of the ruse, and instead opted for a broad-strokes overview.
