Nick Hawkins / Red billed tropicbird (Phaethon aethereus) in flight over volcanic rock. San Cristobal Island, Galapagos.
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Doug Perrine / Red tailed tropic bird (Phaethon rubricauda rothschildi) in courtship flight, Sand Island, Midway Atoll National Wildlife Refuge, Papahanaumokuakea Marine National Monument, Northwest Hawaiian Islands...
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Doug Perrine / Red tailed tropic bird (Phaethon rubricauda rothschildi) in courtship flight, Sand Island, Midway Atoll National Wildlife Refuge, Papahanaumokuakea Marine National Monument, Northwest Hawaiian Islands...
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Doug Perrine / Red tailed tropic bird (Phaethon rubricauda rothschildi) in courtship flight, Sand Island, Midway Atoll National Wildlife Refuge, Papahanaumokuakea Marine National Monument, Northwest Hawaiian Islands...
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Doug Perrine / Red-tailed tropicbird (Phaethon rubricauda rothschildi) sitting on nest on ground, Sand Island, Midway, Atoll, Midway Atoll National Wildlife Refuge, Papahanaumokuakea Marine National Monument, Northw...
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Doug Perrine / Red-tailed tropicbird (Phaethon rubricauda rothschildi) pair in courtship flight, Sand Island, Midway Atoll National Wildlife Refuge, Papahanaumokuakea Marine National Monument, Northwest Hawaiian Isl...
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Doug Perrine / Red-tailed tropicbird (Phaethon rubricauda rothschildi) pair in courtship flight, Sand Island, Midway Atoll National Wildlife Refuge, Papahanaumokuakea Marine National Monument, Northwest Hawaiian Isl...
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Doug Perrine / Red-tailed tropicbird (Phaethon rubricauda rothschildi) pair in courtship flight, Sand Island, Midway Atoll National Wildlife Refuge, Papahanaumokuakea Marine National Monument, Northwest Hawaiian Isl...
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Luis Quinta / Golden bosun (Phaethon lepturus) Principe Island, UNESCO World Heritage Site, Democratic Republic of Sao Tome and Principe, Gulf of Guinea.
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Tui De Roy / Red-billed Tropicbird (Phaethon aethereus) trio flying, Plazas Island, Galapagos Islands, Ecuador
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Oriol Alamany / Red-tailed tropicbird (Phaethon rubricauda) in flight, Malabar Hill, Lord Howe island, Lord Howe Island Group UNESCO Natural World Heritage Site, New South Wales, Australia
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Oriol Alamany / Red-tailed tropicbird (Phaethon rubricauda) in flight, Malabar Hill, Lord Howe island, Lord Howe Island Group UNESCO Natural World Heritage Site, New South Wales, Australia