Ben Lascelles / Great Dusky Swift (Cypseloides senex) Birds flying past rainbow created by waterfalls, Iguazu National Park, Argentina, October 2008
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Ben Lascelles / Iguazu waterfalls, Iguacu National Park, Argentina. October 2008.
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Michael Hutchinson / Waterfalls, Iguacu (Iguazu) National Park, Brazil
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Thomas Marent / Cascades of the Iguacu Falls, the world's largest waterfalls, Iguacu National Park, Argentina
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Thomas Marent / Two Sisters Waterfalls, Iguacu Falls National Park, Brazil
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Thomas Mangelsen / Cascades of Iguacu Falls surrounded by tropical rainforest, Iguacu Falls National Park, Brazil
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Konrad Wothe / Rainbow at Iguacu Falls, largest waterfalls in the world, Iguacu National Park, Brazil
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Ben Lascelles / Great Dusky Swift (Cypseloides senex) at nest near waterfall, Iguazu National Park, Argentina, October
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Ben Lascelles / Great Dusky Swifts (Cypseloides senex) at a nest in front of waterfall, Iguazu National Park, Argentina, October 2008
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Ben Lascelles / Great Dusky Swifts (Cypseloides senex) perched on cliff in front of waterfall, Iguazu National Park, Argentina, October
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Ben Lascelles / Great Dusky Swift (Cypseloides senex) perched on mossy cliff in front of waterfall, Iguazu National Park, Argentina, October
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Ben Lascelles / Great Dusky Swift (Cypseloides senex) perched on cliff in front of waterfall, Iguazu National Park, Argentina, October 2008
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Ben Lascelles / Great Dusky Swift (Cypseloides senex) perched on cliff in front of waterfall, Iguazu National Park, Argentina, October 2008,
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Ben Lascelles / Great Dusky Swift (Cypseloides senex) perched in front of waterfall, Iguazu National Park, Argentina, October 2008
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Ben Lascelles / Great Dusky Swift (Cypseloides senex) flying in front of waterfall, Iguazu National Park, Argentina, October 2008
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Ben Lascelles / Iguazu waterfalls, Iguacu National Park, Argentina, UNESCO World Heritage Site, October 2008
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Ben Lascelles / Iguazu waterfalls, Iguacu National Park, Argentina. UNESCO World Heritage Site, October 2008
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Ben Lascelles / Iguazu waterfalls, Iguacu National Park, Argentina. UNESCO World Heritage Site, October 2008
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Ben Lascelles / Epaulet Oriole (Icterus cayanensis). Iguazu waterfalls, Iguacu National Park, Argentina. October
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Konrad Wothe / Cascades of the Iguacu Falls, the world's largest waterfalls, Iguacu National Park, border of Brazil and Argentina
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Konrad Wothe / Cascades of the Iguacu Falls, the world's largest waterfalls, with rainbow, Iguacu National Park, border of Brazil and Argentina
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Ben Lascelles / Toco Toucan (Ramphastos toco). Iguacu National park, Argentina. Oct 2008.
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Ben Lascelles / Plush-crested Jay (Cyanocorax chrysops). Iguazu Waterfalls, Iguacu National park, Argentina, October.
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Ben Lascelles / Iguazu waterfalls, Iguacu National Park, Argentina. October 2008.
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Konrad Wothe / Cascades of the Iguacu Falls, the world's largest waterfalls, Iguacu National Park, Brazil
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Michael Hutchinson / Tourists observe Iguazu waterfalls, Iguacu National Park, Brazil
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Michael Hutchinson / Iguazu Falls and tourist pleasure boat, Iguacu National Park, Argentina February 2009
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Michael Hutchinson / Tourists on viewing platform dwarfed by Iguazu falls including Garganta del Diablo (Devil's throat), Iguacu National Park, Argentina February 2009
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Michael Hutchinson / People on viewing platform dwarfed by Iguazu falls, Iguacu National Park, Argentina February 2009
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Michael Hutchinson / View down over the Iguazu falls with tourist walkway visible, Iguacu National Park, Argentina February 2009
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Michael Hutchinson / Tourists on walkway by Iguazu waterfalls, Iguacu National Park, Brazil
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Michael Hutchinson / Iguazu Falls with rainbow, Iguaçu National Park, Brazil
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Michael Hutchinson / Waterfalls, Iguacu (Iguazu) National Park, Brazil
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Michael Hutchinson / Waterfalls, Iguacu (Iguazu) National Park, Brazil
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Michael Hutchinson / Waterfalls, Iguacu (Iguazu) National Park, Brazil
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Michael Hutchinson / Iguazu falls, Iguaçu National Park, Brazil
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Michael Hutchinson / Iguazu Falls with rainbow, Iguaçu National Park, Brazil February 2009
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Michael Hutchinson / Waterfalls, Iguacu (Iguazu) National Park, Brazil
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Michael Hutchinson / Man on viewing platform watching the Iguazu waterfall, Iguaçu National Park, Brazil
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Michael Hutchinson / Spray rising from the waterfalls, Iguacu (Iguazu) National Park, Brazil
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Michael Hutchinson / Spray rising from the waterfalls, Iguacu (Iguazu) National Park, Brazil
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Kevin Schafer / Slaty-breasted Wood-Rail (Aramides saracura) in rainforest understory, Iguacu National Park, Brazil
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Kevin Schafer / Dusky-legged Guan (Penelope obscura) perching, Iguacu National Park, Brazil
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Kevin Schafer / Plush-crested Jay (Cyanocorax chrysops), Iguacu National Park, Brazil
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Thomas Marent / Cascades of the Iguacu Falls, the world's largest waterfalls, Iguacu National Park, Argentina
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Thomas Marent / Red-breasted Toucan (Ramphastos dicolorus) on branch, Iguacu Falls National Park, Brazil
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Thomas Marent / Red-breasted Toucan (Ramphastos dicolorus) on branch, Iguacu Falls National Park, Brazil
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Thomas Marent / Cascades of Iguacu Falls, Iguacu Falls National Park, Brazil
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Thomas Marent / Nymphalid butterfly (Temenis laothoe), Iguacu National Park, Brazil
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Theo Allofs / Cascades of Iguacu Falls, Iguacu Falls National Park, Brazil
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Theo Allofs / Cascades of Iguacu Falls, Iguacu Falls National Park, Brazil
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Konrad Wothe / Aerial view of Iguacu Falls, largest waterfalls in the world, Iguacu National Park, Brazil
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Konrad Wothe / Aerial view of Iguacu Falls, largest waterfalls in the world, Iguacu National Park, Brazil
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Norbert Wu / Rainbow over Iguacu Falls, world's largest waterfalls, Brazil and Argentina border
