John Chan / Elegant tern (Thalasseus elegans) with a broken wing, attempting to take off, Southern California, USA, April.
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John Chan / Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, Southern California, USA, April.
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John Chan / Western gull (Larus occidentalis) feeding on a California two-spot octopus (Octopus bimaculoides) on a mudflat at low tide, Southern California, USA, November.
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Suzi Eszterhas / Western Gull (Larus occidentalis) portrait, with nesting material in beak, Monterey Bay, California, USA, April
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Michael Durham / Western Gull (Larus occidentalis) flock flying over the Oregon coast
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Tom Vezo / Western gull {Larus occidentalis} portrait, USA.
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Tom Vezo / Western gull {Larus occidentalis} portrait on a rock, USA.
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John Chan / Western gulls (Larus occidentalis) preening on a beach, Southern California, USA.
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John Chan / Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, attempts to take flight, Southern California, USA, April.
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Suzi Eszterhas / Isabel Luevano, Rehabilitation Technician, removing fishing line and hook from entangled Western gull (Larus occidentalis) nternational Bird Rescue, Fairfield, California. Captive - rescued and in re...
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John Chan / Juvenile Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, Southern California, USA, April.
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John Chan / Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, attempts to take flight, Southern California, USA, April.