Thorley Wash | Herts and Middlesex Wildlife TrustA reserve filled with birdsong south of Bishop’s Stortford, and one of a string of wetlands flanking the Stort Navigation.A reserve filled with birdsong south of Bishop’s Stortford, and one of a string of wetlands flanking the Stort Navigation. About the Reserve The morning sun’s bright rays begin to clear the mist from the meadow, a sedge warbler is singing and a kestrel https://www.hertswildlifetrust.org.uk/reserves/thorley-wash