Woodland Trust

Nature's CalendarNature Detectives

Look out for the first tinting of silver birch leaves

Jean Combes. Graham FudgerBe inspired


By two of our star recorders

They have been contributing their observations to the UK Phenology Database for more than sixty years. 

Their records have been used by scientists, government departments, research organisations and in post graduate projects.

Below: Jean Combes' oak budburst graph 1950 - 2013

Jean Combes oak budburst graph 1950-2013