David Perpinan / Common rock sparrow (Petronia petronia) feeding chicks in nest, filmed using an infra-red camera, Cuenca, Castile-La Mancha, Spain, June.
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David Perpinan / Common rock sparrow (Petronia petronia) chick exploring outside nest, Cuenca, Castile-La Mancha, Spain, June.
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David Perpinan / Adult Common rock sparrow (Petronia petronia) feeding chicks, Cuenca, Castile-La Mancha, Spain, June.
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David Perpinan / Female Rock sparrow (Petronia petronia) feeding chick inside nest, filmed with an infrared camera, Spain, June.
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Angelo Gandolfi / Cattle egret (Bubulcus ibis) on back of Dromedary camel (Camelus dromedarius), Morocco.
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Angelo Gandolfi / Cattle egret (Bubulcus ibis) on head of Dromedary camel (Camelus dromedarius), Morocco.
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Wild Wonders of Europe / Allofs / White Camargue horse stallion with a Cattle egret (Bulbulcus ibis) on his back, Camargue, France, April 2009
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Theo Allofs / Lechwe (Kobus leche) and Cattle Egret (Bubulcus ibis) in Moremi Game Reserve, Okavango Delta, Botswana
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Steven David Miller / Cattle Egret {Ardea ibis} on nest with chicks, summer, Caversham Wildlife Park, Perth, Western Australia, captive
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Pete Oxford / Cape Buffalo (Syncerus caffer) herd with Cattle Egret (Bubulcus ibis) flock in clearing, Africa
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Jean E. Roche / Wild horse (Equus caballus) grazing with Cattle egret (Bubulcus ibis) perched on back. Camargue, France.
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Pete Oxford / Cattle Egret perched on back of African Elephant (Loxodonta africana) Amboseli NP Kenya
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Gabriel Rojo / Cattle egret with chick at nest {Bubulcus ibis} La Pampa, Argentina
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Gabriel Rojo / Cattle egret with chicks at nest {Bubulcus ibis} La Pampa, Argentina
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Gabriel Rojo / Cattle Egret {Bubulcus ibis} Argentina
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Tim Fitzharris / African Elephant (Loxodonta africana) parents and two calves with Cattle Egret (Bubulcus ibis) flock, Kenya
