Kim Taylor / Wren (Troglodytes troglodytes) fledgling on brick wall. Surrey, England, June.
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David Kjaer / Small tortoiseshell butterfly (Aglais urticae) Wiltshire, UK
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Robin Chittenden / Red Squirrel (Sciurus vulgaris) standing in front of brick wall, Isle of Wight, Hampshire, UK August
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Joris van Alphen / Barn swallow (Hirundo rustica) nesting in brick wall of old cowshed. Thierache, France. July.
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Alan Williams / Red mason bee (Osmia rufa) sealing nest hole in brick wall. Cheshire UK, May.
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Alan Williams / Red mason bee (Osmia rufa) sealed nest hole in brick wall. Cheshire UK, May.
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Alan Williams / Red mason bee (Osmia rufa) sealing nest hole in brick wall. Cheshire UK, May.
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Alan Williams / Insect nest box on wall, occupied by Red mason bees (Osmia bicornis) showing most holes sealed with mud. Cheshire, UK, May.
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Alan Williams / Red mason bee (Osmia bicornis) female at nest hole in brick wall. Cheshire, UK, May.
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Alan Williams / Insect nest box on wall, occupied by Red mason bees (Osmia bicornis). The bees can be seen at work with some holes already sealed with mud. Cheshire, UK, May.
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Alan Williams / Red mason bee (Osmia rufa) sealing nest hole in brick wall. Cheshire UK, May.
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Alan Williams / Insect nest box on wall occupied by Red mason bees (Osmia bicornis). Some holes are already sealed with mud and others show yellow pollen stores to feed hatching larva. Cheshire, UK, May.
