Lutz Balke a friend of mine found in May 2011 a beautiful male Cirtrine Wagtail near Lübbenau (Brandenburg, Germany). The male was busy singing and showed a clear area. Following there was then a confirmed mixed breed with a female of Yellow Wagtail (M. f. flava).
This breeding was successful. The male Citrine Wagtail was repeatedly observed during feeding in the nest area in early June and late June with the fledged young birds. The photos of the nice male Citrine Wagtail in the second Calendar year was made by myself on 24. and 25. May in 2011.