Bence Mate / Hooded crow (Corvus cornix) mobbing Buzzard (Buteo buteo) Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary. January.

Bence Mate / White tailed sea eagle (Haliaeetus albicilla) and Hooded crow (Corvus cornix) in snow, Lake Csaj, Kiskunsagi National Park, Hungary. January.

Bence Mate / Juvenile White tailed eagle (Haliaeetus albicilla)in flight, with Hooded crow (Corvus cornix) mobbing it, Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary. January.

Bence Mate / Group of Great egrets (Ardea alba) reflected in still water, with Hooded crows (Corvus cornix), Lake Csaj, Pusztaszer, Hungary. Winner of the Portfolio category of the Terre Sauvage Nature Images Awar...

Markus Varesvuo / White-tailed eagle (Haliaeetus albicilla) and hooded crow (Corvus cornix), Norway, October.

Markus Varesvuo / Grey heron (Ardea cinerea) with fish and Hooded crow (Corvus cornix). Porvoo, Finland. March

Bence Mate / Hooded crow (Corvus coronix) and Eurasian Magpie (Pica pica) waiting to scavenging White tailed eagle's (Haliaeetus albicilla) food, Pusztazer, Hungary.

Jussi Murtosaari / Jackdaw (Corvus monedula) flockin flight with two Hooded Crows (Corvus cornix) and the moon, central Finland, March.

Robin Chittenden / Hooded crow (Corvus cornix) on rooftop. Cyprus. April.

SCOTLAND: The Big Picture / Hooded crow, (Corvus corone cornix), perched on ribs of carcass, Scotland, UK.February

SCOTLAND: The Big Picture / Hooded crow, (Corvus corone cornix), on ground, Scotland, UK, January.January

David Tipling / Hooded crow (Corvus cornix) Hortobagy National Park, Hungary January

David Tipling / Hooded crows (Corvus cornix) fighting, Hortobagy National Park, Hungary January

David Tipling / Hooded crow (Corvus cornix) fighting Hortobagy National Park, Hungary January

David Tipling / Hooded crow (Corvus cornix) Hortobagy National Park, Hungary January

Loic Poidevin / White tailed sea eagle (Haliaeetus albicilla) perched on tree stump with fish. Hooded crow (Corvus cornix) flying in to attack in background. Danube Delta, Romania. May.

Loic Poidevin / Hooded crown (Corvus cornix) flying with egg in beak, Danube Delta, Romania. May.

Loic Poidevin / Golden jackal (Canis aureus) climbing tree trunk to scavenge fish left by Sea eagle. Hooded crow (Corvus cornix) perched at top. Danube Delta, Romania, May.

Loic Poidevin / Golden jackal (Canis aureus) snarling and chasing off Hooded crows (Corvus cornix). Danube Delta, Romania, May.

Loic Poidevin / Hooded crow (Corvus cornix) mobbing White tailed sea eagle (Haliaeetus albicilla). Danube Delta, Romania. May.

Loic Poidevin / Hooded crow (Corvus cornix) perched in tree. Danube Delta, Romania. May.

Loic Poidevin / Golden jackal (Canis aureus) climbing down tree trunk after eating fish left by Sea eagle. Hooded crows (Corvus cornix) out of focus in foreground. Danube Delta, Romania, May.

Loic Poidevin / Golden jackal (Canis aureus) on a tree trunk scavenging fish left by Sea eagle. Hooded crow (Corvus cornix) looking on. Danube Delta, Romania, May.

Robin Chittenden / Hooded crow (Corvus cornix) in flight with snail in bill, Romania. May.

Mary McDonald / Sambar deer (Rusa unicolor) fawn in marsh with House crow, (Corvus splendens) trying to land on head, Keoladeo National Park, Utter Pradesh, India

Kerstin Hinze / Hooded crow (Corvus cornix) standing on grass, Vienna, Austria. October.

Kerstin Hinze / Hooded crow (Corvus cornix) flying low, Vienna, Austria. October.

Kerstin Hinze / Hooded crow (Corvus cornix) flying low, Vienna, Austria. October.

Nick Upton / Jackdaws (Corvus mondedula) flying and settling in trees before taking off, with Greylag geese (Anser anser) flying past, Gloucestershire, England, UK, December.

Nick Upton / Jackdaws (Corvus mondedula) flying and settling in trees at their roost site at dusk, with Greylag geese (Anser anser) flying past, Gloucestershire, England, UK, December.

David Tipling / Hooded crow (Corvus cornix) taking off, Finland, April.

Nick Hawkins / Grey jay (Perisoreus canadensis) New Brunswick, Canada. May.

Markus Varesvuo / Hooded Crow (Corvus corone cornix) attacking a White-tailed Sea Eagle (Haliaetus albicilla), Hungary, January.

Hanne & Jens Eriksen / Pomarine skua (Stercorarius pomarinus) harassed by House crows (Corvus splendens), Oman, October

Robin Chittenden / House Crow (Corvus splendens) on ground, Sri Lanka.

Melvin Grey / Hooded crow (Corvus corone cornix) adult male sitting on weed covered branch on small island in middle of lake. Danube Delta, Romania

Bernard Castelein / Hooded crow (Corvus cornix) Berlin, Germany November

Pete Oxford / House crow (Corvus splendens) on carcass, National Chambal Gharial Wildlife Sanctuary, Madhya Pradesh, India.

Jussi Murtosaari / Eurasian eagle-owl (Bubo bubo), with Hooded crow (Corvus cornix) Jyvaskyla, Central Finland, October.

Melvin Grey / Hooded cow (Corvus cornix) adult male scavenging dead rabbit, Fetlar, Shetland, UK, June.

Nick Upton / Grey squirrel (Sciurus carolinensis) burying Peanut given to it by tourist in lawn, being watched by Carrion crow (Corvus corone) who will then steal the cache later, St.James's Park, London, UK, Sep...

Nick Upton / Grey squirrel (Sciurus carolinensis) burying Peanut given to it by tourist in lawn, being watched by Carrion crow (Corvus corone) who will then steal the cache later, St.James's Park, London, UK, Sep...

Nick Upton / Grey squirrel (Sciurus carolinensis) sitting on park bench feeding on Almonds given to it by tourist, with Carrion crows (Corvus corone) and Feral pigeon (Columba livia) and people walking in the ba...

Bence Mate / Grey heron (Ardea cinerea) looking on as White tailed eagle (Haliaeetus albicilla) feeding, with Magpies (Pica pica) waiting to scavenge. Hungary.

Markus Varesvuo / White-tailed Eagle (Haliaeetus albicilla) perched on snowy rock with Hooded crow (Corvus cornix) in background, Norway, November

Hanne & Jens Eriksen / House crow (Corvus splendens) on Arabian Camel (Camelus dromedarius), Oman, January

Hanne & Jens Eriksen / House crow (Corvus splendens) with prey on the beach, Oman, January

Hanne & Jens Eriksen / House crow (Corvus splendens) feeding on insects from Arabian Camel (Camelus dromedarius), Oman, January

Oliver Scholey / Grey wolf (Canis lupus) hunting pacific salmon, with crow in background, Katmai National Park, Alaska, USA, August.

David Tipling / House Crow (Corvus splendens) stealing match box from table Bharatpur, India.

Charlie Summers / Gray Jay (Perisoreus canadensis) perched on a rock alongside the Needles Highway, Custer State Park, South Dakota, USA, October.

Nick Upton / Lapwings (Vanellus vanellus), Jackdaws (Corvus monedula) and Golden plover (Pluvialis apricarius) flying over flooded pastureland with mix of Greylag geese (Anser anser), Shelduck (Tadorna tadorna), W...

Nick Upton / Carrion crow (Corvus corone) approaching Grey squirrel (Sciurus carolinensis) eating peanut given to it by a tourist, St. James's Park, London, UK, January.

Kristel Richard / A traditionally dressed Crow Indian man rides an appaloosa horse during the parade, at the annual Indian Crow Fair, at Crow Agency, near Billings, Montana, USA, August 2011

Terry Whittaker / 2020VISION / Grey heron (Ardea cinerea) on ice with Carrion crow (Corvus corone), River Tame, Reddish Vale Country Park, Stockport, Greater Manchester, UK, December 2010

Terry Whittaker / 2020VISION / Grey heron (Ardea cinerea) on ice with Carrion crow (Corvus corone), River Tame, Reddish Vale Country Park, Stockport, Greater Manchester, UK, December 2010

Terry Whittaker / 2020VISION / Grey heron (Ardea cinerea) on ice with Carrion crow (Corvus corone), River Tame, Reddish Vale Country Park, Stockport, Greater Manchester, UK, December 2010

Edwin Giesbers / Wild Grey wolf (Canis lupus) being mobbed by a crow, Kuhmo, Finland, Autumn

Wild Wonders of Europe / Radisics / Grey heron (Ardea cinerea) and a Hooded crow (Corvus cornix) Hortobagy National Park, Hungary, July 2009

Donald M. Jones / Timber Wolf (Canis lupus) stepping on ice floe with elk antlers from previous kill with Common Raven (Corvus corax) flying off, Yellowstone National Park, Wyoming

Wild Wonders of Europe / Widstrand / Wild European Grey wolf (Canis lupus) with crow in foreground, Kuhmo, Finland, September 2008

Thomas Mangelsen / Timber Wolf (Canis lupus) group and Common Raven (Corvus corax) group play in the snow, National Elk Refuge, Wyoming

Thomas Mangelsen / Timber Wolf (Canis lupus) group and Common Raven (Corvus corax) feed on Elk (Cervus elaphus) carcass, National Elk Refuge, Wyoming

Jim Brandenburg / Timber Wolf (Canis lupus) and Common Raven (Corvus corax) group feeding on deer carcass in snow, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupus) and Common Raven (Corvus corax) group feeding on deer carcass in snow, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupus) feeding on carcass with Common Raven (Corvus corax) group, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupus) chasing Common Raven (Corvus corax) flock, Minnesota

Mary McDonald / Sambar deer (Rusa unicolor) in marshy area, with house crow (Corvus splendens) on back, Keoladeo National Park, Utter Pradesh, India.

Mary McDonald / Sambar deer (Rusa unicolor) in marshy area, with house crow (Corvus splendens), Keoladeo National Park, Utter Pradesh, India.

Michael Quinton / Common Raven (Corvus corax) trio perching in a pine tree during a snowstorm, North America

Doug Gimesy / Australian raven (Corvus coronoides) feeding on the remains of a young Grey-headed flying-fox (Pteropus poliocephalus) carcass, that died during a cold weather event, Yarra Bend Park, Kew, Victoria, A...

Dave Watts / Grey butcherbird (Cracticus torquatus) perched on branch, Tasmania, Australia.

Dave Watts / Grey butcherbird (Cracticus torquatus) perched on branch, Tasmania, Australia.

Joel Sartore / Photo Ark / House crow (Corvus splendens protegatus) portrait, Sheikh Butti Maktoum Wildlife, Dubai. Captive, occurs in southern India, Sri Lanka and Maldives.

Jussi Murtosaari / White-tailed eagle (Haliaeetus albicilla) in flight being chased by two Hooded crows (Corvus cornix), Finland. May.

Jussi Murtosaari / Hooded crow (Corvus cornix) perched on branch crowing at a roosting Eurasian eagle-owl (Bubo bubo), Finland. January.

Guy Edwardes / Hooded crow (Corvus cornix) mobbing a Griffon vulture (Gyps fulvus) perched on branch, Eastern Rhodope Mountains, Bulgaria. January.

Andy Rouse / Eurasian wolf (Canis lupus lupus) standing in forest watching Crows (Corvus sp.), Finland. October.

Mateusz Piesiak / Two Hooded crows (Corvus cornix) standing in snow, Poland. January.

Espen Bergersen / Three Grey wolves (Canis lupus) walking through mud at edge of forest surrounded by Crows (Corvus sp.), Finland. September.

Roland Seitre / Imperial eagle (Aquila heliaca) standing on desert ground with House crow (Corvus splendens) close by, Dhofar, Oman.

Roland Seitre / Two House crows (Corvus splendens) mobbing Greater spotted eagle (Aquila clanga), Dhofar, Oman.

Roger Powell / Hooded crow (Corvus corone cornix) searching for nesting material in field, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Markus Varesvuo / Hooded crow (Corvus corone cornix) standing on water-covered ice, with reflection of buildings at sunset in background, Helsinki, Finland. December. 'Vuoden luontokuva' Finland's Nature Phot...

Jussi Murtosaari / Hooded crow (Corvus corone cornix) alert on snow covered ground, Finland. April.

Nick Upton / Jackdaw (Corvus monedula) pair returning with beakfuls of animal hair to line their nest after evicting a pair of Grey squirrels from the nest box, Wiltshire, UK, March.

Nick Upton / Grey squirrel (Sciurus carolinensis) peering from a nest box it has spent the night in with its mate as a Jackdaw (Corvus monedula) which also wants to nest in the box, watches from a nearby tree trun...

Nick Upton / Jackdaw (Corvus monedula) chasing a Grey squirrel (Sciurus carolinensis) as it leaves a nest box the bird wants to nest in, which has already been occupied by the squirrel and its mate, Wiltshire, UK,...

Nick Upton / Jackdaw (Corvus monedula) pair dive bombing and harassing a Grey squirrel (Sciurus carolinensis) as it emerges from a nest box the birds want to nest in which is already occupied by the squirrel and i...

Nick Upton / Jackdaw (Corvus monedula) swooping down calling with claws raised to threaten a Grey squirrel (Sciurus carolinensis) in the entrance to a nest box the bird wants to nest in which is already occupied b...

Nick Upton / Jackdaw (Corvus monedula) pair chasing a Grey squirrel (Sciurus carolinensis) as it emerges from a nest box the birds want to nest in which is already occupied by the squirrel and its mate, Wiltshire,...

Nick Upton / Jackdaw (Corvus monedula) chasing a Grey squirrel (Sciurus carolinensis) as it leaves a nest box the bird wants to nest in, which has already been occupied by the squirrel and its mate, Wiltshire, UK,...

Nick Upton / Jackdaw (Corvus monedula) hovering above a nest box it wants to nest in which a Grey squirrel (Sciurus carolinensis) and its mate have already occupied, with the squirrel threatening the bird, Wiltshi...

Nick Upton / Grey squirrel (Sciurus carolinensis) grooming its mate in the entrance to a garden nest box. Wiltshire, UK, March.

Nick Upton / Jackdaw (Corvus monedula) pair dive bombing and harassing a Grey squirrel (Sciurus carolinensis) as it emerges from a nest box the birds want to nest in which is already occupied by the squirrel and i...

Nick Upton / Jackdaw (Corvus monedula) swooping in very close to threaten a Grey squirrel (Sciurus carolinensis) as it stands in the entrance to a nest box the bird wants to nest in which is already occupied by th...