motacillidae

H snapped a very good picture of a avian pal who’s been visiting and running about on the deck lately, Bachstelze or more descriptively a pied wagtail (Motacilla alba—a mistranslation of the Latin term “little-mover” from the medieval notion that cilla meant tail). I had seen these passerine birds on the path that runs by the pond (= Bach) with their distinctive gait, swift but halting after a few paces to bounce their tail feathers, but they hadn’t before ventured to our backdoor—apparently they prefer the bare range of pavement for foraging where it can best see and pursue and the deck met these conditions too. This comical, constant tail wagging is observed in all related species but the behaviour is poorly understood—possibly a tactic to flush out prey or signal vigilance to potential predators.