Place: Aylesford Friary, Maidstone, Kent
Date: 26 September 2015.
Place: Leeds Castle, Kent
Date: 2 July 2016.
Place: River Test near Mottisfont, Hampshire
Date: 26 December 2018.
[Cygnus atratus, Family Anatidae, Order Anseriformes, Wikipedia Entry: Black swan]
The sound of the black swan (borrowed from the Xeno-Canto website, recordist Marc Anderson)
Distribution and sightings of the black swan across the British Isles (borrowed and modified from the Bird Atlas Mapstore).
Marnix's Bird Gallery 