"What we were doing was just something worthwhile. You know, helping these birds to recover from the low – very low - ebb that they were in, in the fifties and early sixties."
Today, the high fells and crags of Cumbria are a stronghold for the Peregrine Falcon in the UK, but this bird of prey was on the verge of extinction in Cumbria in the decades after the Second World War.
The Peregrine population crashed between the 1940s and 1970s following the introduction of pesticides such as DDT. Lethal doses of these chemicals built up in the adult birds, causing death or thinning of eggshells.
Following a ban on the use of these chemicals, there is once again a healthy population of the Peregrine Falcon in the upland valleys of Cumbria. Geoff Horne played an integral part in their recovery.
Find out more about Geoff on the Biographies page.