Ejemplar visto en la Piedra del tabor, altura 1,730 m.s.n.m.
Bob, bob, bobbing tail and rear as works the shallow and mud bank
I may be wrong on the species, but it is a very small bird that was quick moving.
Northern Waterthrush - uniformly wide supercilium which is uniformly white in color.
low-lit photo lightened some. Wagging tail and singing.