Ospreys returned to Scotland naturally in 1954 after a century of absence and have spread across Britain through natural colonisation and assisted reintroduction. Their welfare depends on fish-rich waters and freedom from persecution.
Osprey welfare has improved dramatically through legal protection and successful reintroduction programmes. Birds now nesting across Britain have access to good fishing waters and are largely protected from the persecution that drove their original extinction. Ongoing threats include lead poisoning from anglers weights, illegal egg collection by a small number of persistent collectors, and disturbance at nest sites. The extraordinary public engagement with osprey welfare -- through nest cameras and visitor centres -- has built a large constituency of advocates that makes the political case for raptor protection very strong.