The African Pied Wagtail (and possibly the Mekong Wagtail) diverged prior to the massive radiation of the white-bellied black-throated and most yellow-bellied forms, all of which took place during the late Piacenzian (early Late Pliocene), c.
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The two remaining "monochrome" species, Mekong and African Pied Wagtail may be closely related, or a most striking example of convergent evolution.
Mekong | Mekong Delta | White Wagtail | Mekong Wagtail | Yellow Wagtail (disambiguation) | Yellow Wagtail | Willie Wagtail | Wagtail | Mekong River Commission | Adult male Sykes' Wagtail (''M. f. beema'') wintering at Hodal |