Oscar Dewhurst / White-tufted / Rolland's grebe (Rollandia rolland) swimming in Lake Titicaca, Puno, Peru. September. Cropped

Oscar Dewhurst / Titicaca/short-winged grebe (Rollandia microptera) swimming in Lake Titicaca, Puno, Peru. September

Oscar Dewhurst / Titicaca/short-winged grebe (Rollandia microptera) swimming in Lake Titicaca, Puno, Peru. September. Cropped

Oscar Dewhurst / White-tufted / Rolland's grebe (Rollandia rolland) swimming in Lake Titicaca, Puno, Peru. September. Cropped

Gabriel Rojo / White-tufted grebe (Rollandia rolland) group of three on water, La Pampa, Argentina

Gabriel Rojo / White-tufted grebe (Rollandia rolland) stretching wings, La Pampa, Argentina

Gabriel Rojo / White-tufted grebe (Rollandia rolland chilensis), La Pampa, Argentina

Gabriel Rojo / White-tufted grebe (Rollandia rolland) group of three, La Pampa, Argentina

Agustin Esmoris / White-tufted Grebe (Rollandia rolland), Argentina

Gabriel Rojo / White-tufted grebe (Rollandia rolland) on water, La Pampa, Argentina

Gabriel Rojo / White-tufted grebe 1+Rollandia rolland+2, La Pampa, Argentina

Mike Read / White-tufted grebe (Rollandia rolland rolland) pair with chick, Gypsy Cove, Falkland Islands, November.

Mike Read / White-tufted Grebe (Rollandia rolland) resting on water. Falkland Islands, South Atlantic, January.

Pete Oxford / White tufted grebe (Podiceps rolland rolland) calling, Pebble Island, Falkland Islands

Pete Oxford / White tufted grebe (Podiceps rolland rolland) on water, Pebble Island, Falkland Islands

Pete Oxford / White tufted grebe (Podiceps rolland rolland) on water, Pebble Island, Falkland Islands

Pete Oxford / White-tufted Grebe (Rollandia rolland), Pebble Island, Falkland Islands

Pete Oxford / White-tufted Grebe (Rollandia rolland), Pebble Island, Falkland Islands

Kevin Schafer / White-tufted Grebe (Rollandia rolland) in a pond, Falkland Islands

Gabriel Rojo / White tufted grebes courtship display {Rollandia rolland} La Pampa, Argentina Macachin

Gabriel Rojo / White tufted grebe feeds chick {Rollandia rolland} La Pampa, Argentina Macachin {Podiceps

Gabriel Rojo / White tufted grebe {Rollandia rolland} La Pampa, Argentina Salinas grandes {Podiceps

Gabriel Rojo / White tufted grebe carrying chick on back {Rollandia / Podiceps rolland} La Pampa, Argentina

Daniel Heuclin / Titicaca grebe (Rollandia microptera) Lake Titicaca. Bolivia. Endangered, endemic species.

Daniel Heuclin / Titicaca grebe (Rollandia microptera) Lake Titicaca. Bolivia. Endangered, endemic species

Glenn Bartley/ BIA / White-tufted Grebe (Rollandia rolland), Andes, Chile

Gabriel Rojo / White tufted grebe with chick on back {Rollandia rolland} La Pampa, Argentina Macachin

Gabriel Rojo / White tufted grebe + chicks {Rollandia rolland} La Pampa, Argentina Macachin {Podiceps

Gabriel Rojo / White tufted grebe {Rollandia rolland} La Pampa, Argentina Macachin {Podiceps rollandia}

Gabriel Rojo / White tufted grebes courtship display {Rollandia rolland} La Pampa, Argentina Macachin

Gabriel Rojo / White tufted grebe feeds chick {Rollandia rolland} La Pampa, Argentina Macachin {Podiceps

Gabriel Rojo / White-tufted grebe (Rollandia rolland) female on water, carrying chick on its back, La Pampa, Patagonia, Argentina.

Gabriel Rojo / White-tufted grebe (Rollandia rolland) female on water, carrying chick on its back, La Pampa, Patagonia, Argentina.

Roland Seitre / Two Short-winged grebes (Rollandia microptera) resting on Lake Titicaca, Bolivia. IUCN: Endangered.

Roland Seitre / Four Short-winged grebes (Rollandia microptera) in front of reeds, Lake Titicaca, Bolivia. IUCN: Endangered.