John Chan / Double-crested Cormorant (Phalacrocorax auritus) chicks sitting in nest, pestering parent for food before the parent feeds one of the chicks, California, USA, May.
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John Chan / Monarch Butterfly (Danaus plexippus) nectaring on a Sweet scabious (Scabiosa atropurpurea), Orange County, California, USA, May.
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John Chan / Calliope hummingbird (Stellula calliope) chasing insects before returning to its perch, Southern California, USA, April.
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John Chan / Monarch butterfly (Danaus plexippus) taking flight from a Pride of madeira (Echium candicans) after contact with a Honey bee (Apis mellifera), Southern California, USA, April.
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John Chan / Calliope hummingbird (Stellula calliope) extending its tongue after feeding, Southern California, USA, April.
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John Chan / Elegant terns (Thalasseus elegans) gathering at mussel bed during breeding season, one hovering tern has a mussel clamped to its foot, a common mishap caused by stepping on an open mussel, Bolsa Chica...
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John Chan / Great blue heron (Ardea herodias) resting, perched prior to returning to nest site with nesting material, Bolsa Chica Ecological Reserve, Southern California, USA, February.
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John Chan / Great blue herons (Ardea herodias) engaging in twig transfer during nest building, Bolsa Chica Ecological Reserve, Southern California, USA, February.
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John Chan / Eurasian collared dove (Streptopelia decaocto) grooming its fledgling, Bolsa Chica Ecological Reserve, Southern California, USA, March.
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John Chan / American avocets (Recurvirostra americana) foraging in a tidal basin, Bolsa Chica Ecological Reserve, Southern California, USA, October.
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John Chan / American white pelicans (Pelecanus erythrorhynchos) foraging in tidal basin at sunset, Bolsa Chica Ecological Reserve, Southern California, USA, September.
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John Chan / Group of Brent geese (Branta bernicla) foraging in Eelgrass (Zostera marina) bed, Bolsa Chica Ecological Reserve, Southern California, USA, March.
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John Chan / Crenulated fiddler crab (Uca crenulata) waving its major claw at another crab, part of a courtship display, Southern California, USA, June.
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John Chan / Crenulated fiddler crab (Uca crenulata) feeding on detritus, Southern California, USA, June.
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John Chan / Great horned owl (Bubo virginianus) chick watching for parents to return with food, Southern California, USA, June.
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John Chan / Great horned owl (Bubo virginianus) chicks stretching and flapping their wings, Southern California, USA, May.
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John Chan / Peregrine falcon (Falco peregrinus) plucking Dowitcher (Limnodromus) prey, Southern California, USA.
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John Chan / Killdeer (Charadrius vociferus) stamping its feet to create vibrations in the sand as it forages for insects, Southern California, USA, August.
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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 Chan / Flock of Western sandpipers (Calidris mauri) taking flight from salt marsh, Southern California, USA.
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John Chan / American avocet (Recurvirostra americana) foraging in salt marsh, Southern California, USA.
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John Chan / California sea lion (Zalophus californianus) feeding on a Striped bass (Morone saxatilis), Southern California, USA.
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John Chan / Two male Southern Pacific rattlesnakes (Crotalus oreganus helleri) fighting during mating season. This behaviour is known as a "combat dance", and is used to determine dominance and the right to mate...
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John Chan / Anna's Hummingbird (Calypte anna) chick, sleeping in nest, Southern California, USA, March.
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John Chan / Female Anna's hummingbird (Calypte anna) incubating eggs, departs from nest momentarily to feed, Southern California, USA, March.
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John Chan / Female Anna's hummingbird (Calypte anna) incubating eggs, departs from nest momentarily to feed, Southern California, USA, March.
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John Chan / Male Anna's hummingbird (Calypte anna) cleaning its beak on a twig, Southern California, USA, January.
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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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John Chan / Great blue heron (Ardea herodias) predating a Smelt (Osmeridae), Southern California, USA, October.
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John Chan / Juvenile Yellow-crowned night heron (Nyctanassa violacea)predating a twig, learning stalking and hunting skills, Southern California, USA, July.
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John Chan / Juvenile Great blue heron (Ardea herodias) predating a twig , learning stalking and hunting skills, Southern California, USA, July.
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John Chan / Great blue heron (Ardea herodias) chick begging to be fed, Southern California, USA, April.
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John Chan / Juvenile California least tern (Sternula antillarum browni) begging for food from a decoy, used to attract breeding pairs to deserted nest sites, Huntington Beach, California, USA, June.
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John Chan / California least tern chick (Sternula antillarum browni) falling over as it runs towards its parent returning to nest site, Huntington Beach, California, USA, June.
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John Chan / Male California least tern (Sternula antillarum browni) presenting fish offering to female during mating, Huntington Beach, California, USA, May.
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John Chan / Elegant terns (Thalasseus elegans) courting, Southern California, USA, March.
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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 / Black skimmer (Rynchops niger) skimming water surface / feeding, Southern California, USA, July.
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John Chan / Osprey (Pandion haliaetus) feeding on a fish, perched on a dead branch, Bolsa Chica Ecological Reserve, California, USA, October.
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John Chan / Honey bees (Apis mellifera) swarming on a fence, Southern California, USA, December.
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John Chan / Honey bees (Apis mellifera) gathering at the entrance of their nest in a hollow log, with some returning workers carrying pollen baskets, Bolsa Chica Ecological Reserve, California, USA, October.
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John Chan / Honey bees (Apis mellifera) gathering at the entrance to their nest in a hollowed log, Bolsa Chica Ecological Reserve, California, USA, September.
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John Chan / Male California Least Tern (Sternula antillarum browni) courting a female, presenting a fish before chasing off another male, Huntington Beach, California, USA, May.
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John Chan / Honey bee (Apis mellifera) gathering pollen from a Sea fig (Carpobrotus chilensis), Southern California, USA, April.
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John Chan / Honey bees (Apis mellifera) swarming on an old gas tank and establishing a new nest site within, with some individuals beating their wings to create air circulation, Southern California, USA, February...
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John Chan / Double-crested cormorants (Phalacrocorax auritus) juveniles roosting at their rookery preening, Orange County, California, USA, May.
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John Chan / Monarch Butterfly (Danaus plexippus) nectaring on a Sweet scabious (Scabiosa atropurpurea) before flying away, Orange County, California, USA, May.
