Roger Powell / Carrion crow (Corvus corone) pursuing a Mew gull (Larus canus) carrying a frog in its beak. Kolvik, Porsanger fjord, Finnmark, Norway, May.
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Ann & Steve Toon / Whitebacked vulture (Gyps africanus) mobbed by Pied crow (Corvus albus), Zimanga private game reserve, KwaZulu-Natal, South Africa, June.
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George Sanker / Bald Eagle (Haliaeetus leucocephalus) harassed by American crow (Corvus brachyrhynchos). Acadia National Park, Maine, USA. June.
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John Waters / Marsh harrier (Circus aeruginosus) hunting over a reedbed, mobbed by a Carrion crow (Corvus corone), Ham Wall RSPB Reserve, Somerset Levels, England, UK, December.
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Roger Powell / Merlin (Falco columbarius) chasing off a Rook (Corvus frugilegus) in flight. Cresswell, Northumberland, UK. November.
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Andy Rouse / Tree pipit (Anthus trivialis) mobbing Cuckoo (Cuculus canorus), UK. May. Sequence 3 of 3
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Andy Rouse / Tree pipit (Anthus trivialis) mobbing Cuckoo (Cuculus canorus), UK. May. Sequence 2 of 3
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Andy Rouse / Tree pipit (Anthus trivialis) mobbing Cuckoo (Cuculus canorus), UK. May. Sequence 1 of 3
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Jen Guyton / Cape ground squirrels (Xerus inauris) mobbing a Cape cobra (Naja nivea) that had come too close to their burrow in the Kalahari Desert, South Africa.
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Jen Guyton / Sociable weaver birds (Philetairus socius) noisily mob a bright yellow Cape cobra (Naja nivea) that is raiding their nest in the Kalahari Desert, South Africa.
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Jen Guyton / Meerkat (Suricata suricatta) mobbing a Cape cobra (Naja nivea) in the Kalahari Desert, South Africa
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Roger Powell / Red Kite (Milvus milvus) hunting for food and Black-headed Gull (Larus ridibindus) trying to derive it away protect its chicks. Ken / Dee Marshes Nature Reserve, New Galloway, Scotland, UK. July
