Place: Roath Basin, Cardiff Bay, Cardiff
Date: 13 May 2018.
[Riparia riparia, Family Hirundinidae, Order Passeriformes, Wikipedia Entry: Sand martin]
The sound of the sand martin (borrowed from the Xeno-Canto website, recordist Patrik Åberg)
Distribution and sightings of the sand martin across the British Isles (borrowed and modified from the Bird Atlas Mapstore).
Marnix's Bird Gallery 