Nick Upton / European eel (Anguilla anguilla) elver migrating upstream, using an eel pass on the side of a weir, Somerset Levels, England, UK, July.
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Will Watson / Atlantic salmon (Salmo salar) leaping a weir, Shrewsbury, River Severn, Shropshire, England, UK. November.
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Juergen Freund / Flock of Budgerigars (Melopsittacus undulatus ) drinking in an outback dam, Northern Territory, Australia.
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Doug Gimesy / The high flow water release event from Jindabyne dam. Jindabyne, NSW, Australia. October, 2017.
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Doug Gimesy / Platypus (Ornithorhynchus anatinus) researchers preparing radio receivers to be placed into the river and help track the movement of platypus which have had transponders attached. Dalgety, NSW, Austra...
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Alan Williams / Lake Vyrnwy reservoir with water overflowing dam after heavy rainfall. Llanwddyn, Montgomeryshire, Powys, Wales, UK. June 2019.
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Alan Williams / Lake Vyrnwy reservoir with water overflowing dam after heavy rainfall. Llanwddyn, Montgomeryshire, Powys, Wales, UK. June 2019.
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Alan Williams / Water flowing down dam of Lake Vyrnwy reservoir following heavy rainfall. Llanwddyn, Montgomeryshire, Powys, Wales, UK. June 2019.
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Alan Williams / Water flowing down dam of Lake Vyrnwy reservoir following heavy rainfall, grassland in foreground. Llanwddyn, Montgomeryshire, Powys, Wales, UK. June 2019.
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Alan Williams / Dam of Lake Vyrnwy reservoir, water flowing down dam wall following heavy rainfall, surrounded by forest. Llanwddyn, Montgomeryshire, Powys, Wales, UK. June 2019.
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Alan Williams / Lake Vyrnwy reservoir, view to north west with straining tower and wooded hills. Llanwddyn, Montgomeryshire, Powys, Wales, UK. June 2019.
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Steven David Miller / Infinity pool overlooking Lake Argyle. The Kimberley, Western Australia. 2017.