I knew that one of the Pied wagtail’s vernacular names is Polly dishwasher but I’ve only just found out today that its cousin, the Grey wagtail (Motacilla cinerea), is sometimes known as Yellow dishwasher … and Barley bird, and Gypsy bird, and Winter wagtail, and Oatseed bird. Such fascinating names, and such pretty little birds. These two, a male (above) and female (below), were picking their way along the rocks of the Ely River embankment in Cardiff Bay this morning.