A fake beak is an item needed for Eagles' Peak quest along with the eagle cape to make a convincing disguise. It is made by taking Yellow dye and Swamp tar to the Fancy Dress Shop. It is used to prevent players from taking damage from the mother eagle. Additional eagle cape and fake beak combos can be obtained from the fancy-dress shop owner when he is supplied with 5 eagle feathers, 1 swamp tar, yellow dye and 25 coins.