Place: London Wetlands WWT, London
Date: 9 July 2017.
[Cygnus columbianus bewickii, Family Anatidae, Order Anseriformes, Wikipedia Entry: Tundra swan]
The sound of Bewick’s swan (borrowed from the Xeno-Canto website, recordist Richard Dunn)
Distribution and sightings of Bewick’s swan across the British Isles (borrowed and modified from the Bird Atlas Mapstore).