Neil Anderson / Red squirrel (Sciurus vulgaris), two curled up asleep in drey inside nest box. Nest of lichen and Pine needles. Highlands, Scotland, UK. Medium repro only.
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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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Dave Bevan / Slow motion clip of a Blue tit (Cyanistes caeruleus) flying to nest box, enters to feed nestlings and leaves, Carmarthenshire, Wales, UK, June.
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Nick Upton / Common swift (Apus apus) feeding chick in a nest box, filmed using infrared light, Cambridge, England, UK, August.
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Roland Seitre / Yellow-shouldered Amazon (Amazona barbadensis) chicks in nest box, part of a conservation project on the island. Isla Margarita, Nueva Esparta, Venezuela, 2007.
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Terry Whittaker / 2020VISION / Hazel dormouse (Muscardinus avellanarius), Kent, UK. Members of Kent Mammal Group conduct monthly dormouse survey, torpid dormouse hibernating in nest box in coppiced woodland, November 2011. Did you...
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Florian Möllers / Mallard (Anas platyrhynchos), female nesting in window box of a 4th floor flat, Berlin, Germany, June
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Adrian Davies / Insect hotel / Artificial nest holes and shelter for insects and invertebrates, in garden, England, UK, August 2010
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Adrian Davies / Insect hotel / Artificial nest holes and shelter for insects and invertebrates, in garden, England, UK, August 2010
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Flip de Nooyer / Eurasian Kestrel (Falco tinnunculus) group of five juveniles in nesting box, Europe
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Ann & Steve Toon / Spotted eagle owl (Bubo africanus) at nest box, Paternoster, Western Cape, South Africa.
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Ann & Steve Toon / Rock kestrel (Falco rupicolus) at nesting box, Western Cape, South Africa.