What damage do Hedgehogs do

Hedgehogs are small animals with spikes on their backs to protect them-selves from their predators, hedgehogs counted as pests, they can harm the newly planted trees and shrubs by using the their spikes. The government is removing the pests (Ferrets, Cats, Rabbits, Stoats, Hedgehogs, Fleas etc.) away from Motutapu Island because the pests hunt the native birds in New Zealand, and the other destroyed the plants on the island.