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. Ornithologists, historians and politicians reflect on his writing.
The song of the mistle thrush and the curlew anticipate spring. A young Grey enters politics and embarks on two enduring love affairs - one with his future wife Dorothy, the other with nature. Narrated by Anthony Hyde.
(R)