The Flight of the Osprey — Ewan Clarkson

Not since World War I have ospreys been seen in England. Now, however, the magnificent birds are beginning to reclaim their ancient territories. But as Isagair, a two-year-old osprey, soon discovers, survival is still quite difficult. The young bird becomes trapped in a poacher's net and faces a slow death.
Help comes from Nicola Frayle, who, at the age of thirty-seven, has been struggling to accept the early death of her husband. When she discovers the entangled bird, Nicola also begins to find a new sense of purpose, despite the many problems involved in caring for the untamed bird.
Isagair soon recovers and returns the kindness when he begins hunting for food from a neighbor's trout fishery. Nicola finds a friend in fishery owner Martin Collier, himself coming to terms with a troubled past. But for Nicola and Martin - and Isagair, too - many hurdles lie ahead in this magnificently told story, evoking the beauty and wonder of the world in which we live.