White-tufted Grebe (Rollandia rolland) [XC45665]
by id from Villa Pehuenia (lagunita en la ciudad), Neuquen, Argentina., Argentina (call)
White-tufted Grebe (Rollandia rolland) [XC51138]
by Bernabe Lopez-Lanus from La Verdosa, 25 de Mayo, Buenos Aires, Argentina (song)
Subspecies
Mainland subspecies often considered to form a separate species (Rollandia chilensis).
The following 3 subspecies are recognised:
morrisoni (Simmons, 1962) - Central Peru.
chilensis (Lesson, R, 1828) - North-western Peru and south-eastern Brazil south to Cape Horn. Winters on coast, some southern birds moving north to Paraguay and southern Brazil.