Bernard Castelein / Guianan brown capuchin (Sapajus apella) chewing on branch, Pampas del Yacuma Protected Area, Bolivia
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Donald M. Jones / Black-capped Chickadee (Poecile atricapillus) in winter, Troy, Montana
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Hermann Brehm / Blackcap (Sylviya atricapilla) male perched in blossom, Hungary, April.
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Alex Hyde / Brown / Tufted Capuchin (Cebus apella) family group in cloud forest, Manu Biosphere Reserve, Peru.
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Jussi Murtosaari / Blackcap (Sylvia atricapilla) female and two males huddling together for warmth while sleeping, Finland, May.
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Bence Mate / Eurasian blackcaps (Sylvia atricapilla) caught on limed stick, Cyprus. Finalist in The Wildlife Photojournalist Award: Single Image Category of the Wildlife Photographer of the Year Awards (WPOY) Com...
Alan Murphy/ BIA / Black-capped Vireo (Vireo atricapillus), Texas
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Bence Mate / Black crowned night heron (Nycticorax nycticorax) at twilight with other herons in the background, including Grey heron (Ardea cinerea) in flight, Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hun...
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Alan Murphy / Black-capped Chickadee (Poecile atricapillus), Texas
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Alan Murphy / Black-capped Chickadee (Poecile atricapillus) during snowfall, Alaska
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Markus Varesvuo / Blackcap (Sylvia atricapilla) feeding on berries, Uto, Finland, October.
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Ben Cranke / Black-striped capuchin (Sapajus libidinosus) using rock as a tool to break open palm nut, Parnaiba Headwaters National Park, Piaui, Brazil. August.
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Ben Cranke / Black-striped capuchin (Sapajus libidinosus) using rock as a tool to break open palm nut Parnaiba Headwaters National Park, Piaui, Brazil. July.
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Ben Cranke / Black-striped capuchin (Sapajus libidinosus) using rock as a tool to break open palm nut, Parnaiba Headwaters National Park, Piaui, Brazil. July.
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Marie Read / Two Black-capped chickadees (Poecile atricapillus) in mid-air fight by a sunflower, New York, USA, February
Steve Gettle / Black-capped Chickadee (Poecile atricapillus) with berries, North America
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Donald M. Jones / Black-capped Chichadee (Poecile atricapillus) in spring, western Montana
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Donald M. Jones / Black-capped Chichadee (Poecile atricapillus) perching on snow-covered berries, western Montana
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Scott Leslie / Black-capped Chickadee (Poecile atricapillus) flying, Granville Beach, Nova Scotia, Canada
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Pete Oxford / Brown Capuchin (Cebus apella) stabilizes itself with its prehensile tail while using a heavy rock hammer to crack open palm nuts placed in small pits in the anvil rock surface, Cerrado habitat, Brazil
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Pete Oxford / Brown Capuchin (Cebus apella) stabilizes itself with its prehensile tail while using a heavy rock hammer to crack open palm nuts placed in small pits in the anvil rock surface, Cerrado habitat, Brazil
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Tom Vezo / Black-capped Chickadee (Poecile atricapillus) in Bayberry bush, Long Island, New York
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Pete Oxford / Brown Capuchin (Cebus apella) pair using rock and anvil to crack open Piassava Palm (Attalea funifera) nuts, Cerrado habitat, Piaui State, Brazil
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Pete Oxford / Brown Capuchin (Cebus apella) using a rock to crack open a Piassava Palm (Attalea funifera) nut, Cerrado habitat, Piaui State, Brazil
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Pete Oxford / Brown Capuchin (Cebus apella) using a rock to crack open a Piassava Palm (Attalea funifera) nut, Cerrado habitat, Piaui State, Brazil
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Gabriel Rojo / Black-crowned night-heron (Nycticorax nycticorax) perched in bush. Pantanal, Brazil.
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Gabriel Rojo / Brown striped tufted capuchin monkey (Sapajus apella). Pantanal, Mato Grosso Brazil.
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Gabriel Rojo / Brown striped tufted capuchin monkey (Sapajus apella) resting in tree. Amazon rainforest, Mato Grosso Brazil.
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Melvin Grey / Night heron (Nycticorax nycticorax) male standing in water. Kiskunsagi National Park, Hungary. May.
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Melvin Grey / Night heron (Nycticorax nycticorax) male standing stalking prey in water. Kiskunsagi National Park, Hungary. May.
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Loic Poidevin / Eurasian blackcap (Sylvia atricapilla) perched on Rowan (Sorbus aucuparia) Leon, Spain, February
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Eladio Fernandez / Black-capped petrel (Pterodroma hasitata) found on the road to Valle Nuevo National Park, Dominican Republic
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Eladio Fernandez / Black-capped petrel (Pterodroma hasitata) chick at nest burrow Loma del Toro, Dominican Republic
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Bernard Castelein / Black-capped donacobius (Donacobius atricapilla) perched on two reeds, Municipal protected area of Pampas del Yacuma, Bolivia.
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Bernard Castelein / Black-crowned Night Heron (Nycticorax nycticorax), Keoladeo NP, Bharatpur, India
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Bernard Castelein / Guianan brown capuchin, (Sapajus apella), walking up branch, Municipal protected area of Pampas del Yacuma, Bolivia
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Bernard Castelein / Guianan brown capuchin (Sapajus apella), Pampas del Yacuma Protected Area, Bolivia
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Bernard Castelein / Guianan brown capuchin (Sapajus apella), drinking, Pampas del Yacuma Protected Area, Bolivia
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Bernard Castelein / Black-capped squirrel monkey (Saimiri boliviensis peruviensis), Pampas del Yacuma Protected Area, Bolivia
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Bernard Castelein / Black-capped squirrel monkey (Saimiri boliviensis peruviensis), Pampas del Yacuma Protected Area, Bolivia
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Bernard Castelein / Black-capped squirrel monkey (Saimiri boliviensis peruviensis), standing on branch, Municipal protected area of Pampas del Yacuma, Bolivia
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Bernard Castelein / Black-capped squirrel monkey (Saimiri boliviensis peruviensis), Pampas del Yacuma Protected Area, Bolivia
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Bernard Castelein / Guianan brown capuchin (Sapajus apella), Madidi NP, Bolivia
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Bernard Castelein / Guianan brown capuchin (Sapajus apella) feeding,, Madidi NP, Bolivia
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Bernard Castelein / Guianan brown capuchin (Sapajus apella) feeding, Madidi NP, Bolivia
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Bernard Castelein / Guianan brown capuchin (Sapajus apella), exploring a hole in a palm tree for insects, Madidi NP, Bolivia
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Bernard Castelein / Guianan brown capuchin (Sapajus apella), exploring a hole in a palm tree for insects, Madidi NP, Bolivia
Bernard Castelein / Guianan Brown capuchin monkey (Sapajus apella) feeding, Madidi NP, Bolivia
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John Chan / Portrait of a juvenile Black-crowned night heron (Nycticorax nyticorax), Southern California, USA, July.
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John Chan / Portrait of a juvenile Black-crowned night heron (Nycticorax nyticorax), Southern California, USA, July.
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John Chan / Black-crowned night heron (Nycticorax nyticorax) raising its crest in response to a nearby threat, Southern California, USA, July.
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John Chan / Black-crowned night heron (Nycticorax nyticorax) perched on a fence, Southern California, USA, July.
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Donald M. Jones / Black-capped Chickadee (Poecile atricapillus) at pond in autumn, Troy, Montana
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Donald M. Jones / Black-capped Chickadee (Poecile atricapillus) in winter, Troy, Montana
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John Cancalosi / Black-crowned night-heron (Nycticorax nycticorax) juvenile preening whilst standing on log. Toxin forming Blue-green algae (Woronichinia naegeliana) in water behind. Maryland. October 2018.
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Andy Rouse / Black-capped donacobius (Donacobius atricapilla) singing, Pantanal, Brazil
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Hermann Brehm / Blackcap (Sylviya atricapilla) female, Hungary, April.
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Hermann Brehm / Blackcap (Sylviya atricapilla) male, Hungary, April.
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Hermann Brehm / Blackcap (Sylviya atricapilla) female, Hungary, April.
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Staffan Widstrand / Wild Wonders of China / Black-crowned night heron (Nycticorax nycticorax) adult sitting on a branch in East Lake Greenway park, Wuhan, Hubei, China
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Staffan Widstrand / Wild Wonders of China / Young Black-crowned night heron (Nycticorax nycticorax) flying, East Lake Greenway park, Wuhan, Hubei, China
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Staffan Widstrand / Wild Wonders of China / Black-crowned night heron (Nycticorax nycticorax) perched, East Lake Greenway park, Wuhan, Hubei, China
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Staffan Widstrand / Wild Wonders of China / A group of Black-crowned night heron (Nycticorax nycticorax) perched on poles in East Lake Greenway park, Wuhan, Hubei, China
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Staffan Widstrand / Wild Wonders of China / Black-crowned night heron (Nycticorax nycticorax) flying East Lake Greenway park, Wuhan, Hubei, China
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Alex Hyde / Brown / Tufted Capuchin (Cebus apella) juvenile in cloud forest, Manu Biosphere Reserve, Peru.
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Alex Hyde / Brown / Tufted Capuchin (Cebus apella) in cloud forest, Manu Biosphere Reserve, Peru.
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David Tipling / Eurasian blackcap (Sylvia atricapilla) drinking at garden bird bath, Norfolk, England, UK. April.
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Nick Garbutt / RF - Male tufted / Brown capuchin (Cebus apella) sitting in tree, mid-altitude montane forest, Manu Biosphere Reserve, Peru. (This image may be licensed either as rights managed or royalty free.)
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Nick Garbutt / Tufted / Brown capuchin (Cebus apella), male sitting on branch in mid-altitude montane forest, Manu Biosphere Reserve, Peru.
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Nick Garbutt / Tufted / Brown capuchin (Cebus apella), female and two juveniles sitting in branch, mid-altitude montane forest, Manu Biosphere Reserve, Peru.
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Nick Garbutt / Tufted / Brown capuchin (Cebus apella), male standing in tree, mid-altitude montane forest, Manu Biosphere Reserve, Peru..
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Nick Garbutt / Tufted / Brown capuchin (Cebus apella), female with baby on back, sitting in tree, mid-altitude montane forest, Manu Biosphere Reserve, Peru.
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Karine Aigner / Portrait of a Black-capped chickadee, (Poecile atricapillus) with white background, Block island, Rhode Island, USA. Bird caught during scientific research.
Valeriy Maleev / RF - Black-capped marmot (Marmota camtschatica) Barguzinsky District, Siberia, Russia. October. (This image may be licensed either as rights managed or royalty free.)