1.2 Phenology

Phenology is the study of when a recurring natural phenomenon takes place. For example, your first sighting of frog spawn or a snowdrop, or when the berries come on a mountain ash. The arrival and departure of migratory species to and from the UK, in particular birds, is an important ecological (and perhaps cultural) marker of seasonal change.

Those interested in learning more about phenology and getting involved in it should refer to the UK Phenology Network and the Open University's iSpot programme.