Wagtail

Any of the 7 to 10 species of the bird genus Motacilla, of the family Motacillidae, together with the forest wagtail (Dendronanthus indicus) of Asia. Wagtails are strongly patterned birds of beaches, meadows, and streamsides; they usually nest on the ground but roost in trees. The birds are so named because they incessantly wag their long tails up and down. The forest wagtail