Monger’s Arm is our only proper woodland reserve. It is an oak woodland, but was in danger of being overwhelmed by sycamores. The Estate has helped in managing the removal of sycamore trees and saplings, and new oak trees have been planted. The woodland supports a large number of moth species that depend on mature oak woodland and is also home to specialist woodland bird species such as Marsh Tit, Firecrest and all three species of woodpecker. Butterflies to be seen here include the Purple Emperor, Purple Hairstreak and Silver-washed Fritillary.