An astonishing 13 out of the UK's 17 species of breeding bats can now be found at Knepp, including two of the UK's rarest - Bechstein’s and barbastelle. Unlike the days of intensive farming here there are no longer any pesticides going in to the system - this, along with the abundance of nectar sources, has resulted in a resurgence in insect numbers which in turn has resulted in a resurgence in bats. The hedgerows, streams and trees all provide important flight paths and foraging opportunities for bats, as they commute about the landscape.