Change of the guard for nest duty.
Place: Cardiff Bay Wetlands Reserve, Cardiff
Dates: 22 April 2017.
[Fulica atra, Family Rallidae, Order Gruiformes, Wikipedia Entry: Eurasian coot]
The sound of the coot (borrowed from the Xeno-Canto website, recordist David Farrow)
Distribution of the coot across the British Isles (borrowed from the Bird Atlas Mapstore).