As a graduate from University College London, Paul arrived in North-East Wales in the late 1970s, working at the Nature Conservancy Council (NCC) from its office in Mold. He went on to work for its successor, the Countryside Council for Wales (CCW) and then, briefly, Natural Resources Wales (NRW), until his retirement in 2014.
His knowledge of the wildlife of North Wales including the Dee Estuary was encyclopaedic. He never forgot the history of all the Sites of Special Scientific Interest (SSSI) he was responsible for, including the casework, the people and, of course, the wildlife. He got on well with landowners and developers even when there was little meeting of views. He was respected by them and perhaps the best example of this was his long relationship with the Port of Mostyn.