Motacilla alba
Grey and white wagtail with prominent black markings on head and breast. British Isles subspecies M.a.yarreli (Pied Wagtail) with black back, and M.a.alba (continental) with grey back. Only faint black markings on head in juveniles and in winter plumage, but always shows big dark breast patch. Unmistakable in breeding plumage. Pale individuals of Yellow Wagtail and Citrine Wagtail, differs in lacking large breast patch, and in contact call.
Contact calls short and sharp. Usually with disyllabic, "bouncing" quality, and with each syllable only accented, not clearly separated from the other (see Grey Wagtail). Song either slow and primitive, consisting of sharp falling notes given by perched birds, or longer fast and energic bursts in excited song-flight.
Wikipedia: map (se also Xeno-canto below)
Birdlife ecology
