Ugo Mellone / Hooded grebe (Podiceps gallardoi) pair on lake, interchanging Andean milfoil (Myriophyllum quitense) during courtship, Patagonia National Park, Santa Cruz, Argentina. Cropped.
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Ugo Mellone / Andean milfoil (Myriophyllum quitense) on lake surface, Strobel plateau, Santa Cruz, Patagonia, Argentina.
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Ugo Mellone / Hooded grebe (Podiceps gallardoi) pair on lake, interchanging Andean milfoil (Myriophyllum quitense) during courtship, Patagonia National Park, Santa Cruz, Argentina. Cropped.
