Featured on Episode 22

Mentioned in Fantastic Beasts: 
YES! M.O.M. Classification XX
Reported Locations: Southern United States
Known Abilities: Danger-sensing pustule


The Clabbert is a tree-dwelling creature that looks like a cross between a monkey and a frog. It has long, supple limbs that allow the Clabbert to swing through the trees and its hands and feet are webbed. It is smooth and its hairless skin is mottled green. It has short horns and a wide, grinning mouth full of razor-sharp teeth. It also has a large pustule on its forehead.

Source: Fantastic Beasts and Where To Find Them (book)


American wizards once kept Clabberts in their gardens to give early warning of approaching Muggles, but the International Confederation of Wizards has introduced fines which have largely ended this practice. The sight of a tree at night full of glowing Clabbert pustules, while decorative, attracted too many Muggles wishing to ask why their neighbors still had their Christmas lights up in June.

Source: Fantastic Beasts and Where To Find Them (book)