John Chan / California brown pelicans (Pelecanus occidentalis californicus) roosting on a mudflat, with a flock of Elegant terns (Thalasseus elegans) nearby, Southern California, USA May/2019
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John Shaw / Brown bear (Ursus arctos) searching for clams on tidal mudflat with waterbirds. Lake Clark National Park, Alaska. August.
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SCOTLAND: The Big Picture / Panning shot of a large flock of Pink-footed geese (Anser brachyrhynchus) taking off from their roosting site, Montrose, Angus, Scotland, UK, November.
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Ingo Arndt / Grizzly Bear (Ursus arctos horribilis) digging for clams on tidal flats, Lake Clark National Park, Alaska.
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Ingo Arndt / Grizzly Bear (Ursus arctos horribilis) cub on mothers back walking on tidal flats, Lake Clark National Park, Alaska
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Yva Momatiuk & John Eastcott / Bald Eagle (Haliaeetus leucocephalus) adult on mud-flats at low-tide, spring, south central Alaska
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Hanne & Jens Eriksen / Crab-plover (Dromas ardeola) three walking in a row on mudflat, two with food in beaks. Oman, June.
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Nigel Cattlin / Mudflats of Chichester Channel at low tide, at sunset. Itchenor, West Sussex. November 2016.
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Jack Dykinga / Patterns in the tidal flats of the Colorado River Delta where the delta is swept by tidal encroachment from the Gulf of California. Receding tide causes waterfalls approximately eight feet high, as...
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Jack Dykinga / Patterns in the tidal flats of the Colorado River Delta where the delta is swept by tidal encroachment from the Gulf of California. Receding tide causes waterfalls approximately eight feet high, as...
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Mike Read / Ruff (Philomachus pugnax) feeding in mudflat at edge of lagoon. Titchwell Marsh RSPB Reserve, Norfolk, England, UK. September.
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Mike Read / Red knot (Calidris canutus) flock in flight over mudflats at sunset. Snettisham RSPB Reserve, The Wash, Norfolk, England, UK. August 2018.