Place: Caerphilly Commons, Caerphilly
Dates: 6 May 2017.
[Phylloscopus trochilus, Family Phylloscopidae, Order Passeriformes, Wikipedia Entry: Willow warbler]
The sound of the willow warbler (borrowed from the Xeno-Canto website, recordist Patrik Åberg)
Distribution and sightings of the willow warbler across the British Isles (borrowed and modified from the Bird Atlas Mapstore).
Marnix's Bird Gallery 