Tony Wu / Greater crested tern (Thalasseus bergii) feeding on Sardine, Tonga.
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Steven David Miller / Australian sea lion (Neophoca cinerea) male basking on beach with Great crested terns (Thalasseus bergii) in foreground. Seal Bay Conservation Park, Kangaroo Island, South Australia.
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Ann & Steve Toon / Swift terns (Thalasseus bergii) Luderitz, Namibia.
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Jiri Lochman / Crested tern (Sterna bergii) juvenile entangled in a fishing line, likely cut off by a fisherman after the bird swallowed the hooked bait. Australia.
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Jiri Lochman / Crested tern (Sterna bergii) juvenile, entangled in a fishing line, likely cut off by a fisherman after the bird swallowed the hooked bait Australia.
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Franco Banfi / Greater crested terns (Thalasseus bergii) on a strip of sand with the MV Atlantis Azores liveaboard boat in distance, Tubbataha Reef Natural Park, UNESCO World Heritage Site, Sulu Sea, Cagayancillo...
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Franco Banfi / Greater crested terns (Thalasseus bergii) on a strip of sand with the MV Atlantis Azores liveaboard boat in distance, Tubbataha Reef Natural Park, UNESCO World Heritage Site, Sulu Sea, Cagayancillo,...
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Rob Drummond/ BIA / Greater Crested Tern (Thalasseus bergii) juvenile flying, Victoria, Australia
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Charlie Summers / Greater crested tern (Thalasseus bergii) flying against a backdrop of the South Atlantic Ocean. Lambert's Bay, South Africa.
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Oriol Alamany / Greater crested terns (Thalasseus bergii) along shore of Seventy Five Mile beach, Fraser Island UNESCO World Heritage Site. Queensland, Australia, November.
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Hanne & Jens Eriksen / Greater crested tern (Thalasseus bergii) walking in shallow water, Oman, May
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Hanne & Jens Eriksen / Greater crested tern (Thalasseus bergii) in flight and with fish, Oman, August