As Mark Cocker approaches a landmark for the world’s oldest column in an English-language newspaper, he is still inspired by powerful encounters with nature

In the autumn of 1987, Mark Cocker sat in a field near Norwich and watched a jay burying acorns for the long winter ahead. He described the scene in his first country diary for the Guardian. Thirty-nine years on, some of those jay-planted acorns will be mature oaks now, and Cocker is completing his 1,000th diary for the world’s oldest column in an English-language newspaper.

In his next diary, he will reflect on the changing birdlife around Flint Clough, in the Peak District, where he first marvelled at rare birds aged 12 after devouring bird books in his bedroom. As a boy, he would find cuckoo, golden plover, ring ouzel and twite, a once-common bird which is now virtually extinct in England.