The conclusion of a four-part series exploring the changing character of British birdsong over the course of a year as a backdrop to the life of Britain's longest-serving foreign secretary and field naturalist Edward Grey. The Coming of Winter. As Grey retires to the Lords, he is beset by further tragedy-two homes are destroyed by fire, his second wife dies and he loses his sight. He finds solace in writing and in his enduring passion for the birdlife and wildfowl of his Northumberland garden. Narrated by Anthony Hyde , readers Julian Glover and Maureen O'Brien. Producer Jules Wilkinson (R)