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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David Perpinan / Rock sparrow (Petronia petronia) feeding chick outside nest, Spain, June.
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David Tipling / Rock sparrow (Petronia petronia) Extremadura, Spain. December
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David Perpinan / Three Common rock sparrows (Petronia petronia) on a window ledge near nest, Cuenca, Castile-La Mancha, Spain, June.
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David Perpinan / Common rock sparrow (Petronia petronia) perched on a rock shelter at dawn, Cuenca, Castile-La Mancha, Spain, June.
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David Perpinan / Common rock sparrow (Petronia petronia) perched near entrance to nest with food in its beak, Cuenca, Castile-La Mancha, Spain, June.
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David Perpinan / Common rock sparrow (Petronia petronia) perched near entrance to nest with food in its beak, Cuenca, Castile-La Mancha, Spain, June.
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David Perpinan / Juvenile Common rock sparrow (Petronia petronia) perched at nest hole, eating ants, Cuenca, Castile-La Mancha, Spain, June.
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David Perpinan / Common rock sparrow (Petronia petronia) feeding two chicks at nest, Cuenca, Castile-La Mancha, Spain, June.
