Bowtruckle

A bowtruckle is a hand-sized, insect-eating tree dweller with long sharp fingers (two per hand), brown eyes, and the general appearance of a flat-faced stick figure made of bark and twigs, which serves well as camouflage in its natural habitat. They are immensely difficult to spot.

Description
Bowtruckles can be found in western England, southern Germany, and certain Scandinavian forests. A bowtruckle serves as a tree guardian for its home tree, which is usually a tree whose wood is of wand quality. The twig-like fingers are well adapted for digging out wood lice in trees and can also be used as a weapon against a foe when aimed at the eyes. It is generally peaceful creature but will become violent if anything threatens its tree or itself. To take leaves or wood from a bowtruckle's tree, one would have to offer it wood lice or fairy eggs as a distraction.