Close-up of insect nest box on house wall occupied by Red Mason Bees (Osmia bicornis) showing the bees at work May Cheshire UK

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Insect nest box installed on house wall being occupied by Red Mason Bees (Osmia bicornis) showing the bees at work with some holes already finished with apertures covered with mud other holes show yellow pollen stores to feed hatching larva Cheshire UK May 57089

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Size: 5760px × 3840px
Photo credit: © Alan Williams / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: apertures, britain, cavities, covered, england, feed, finished, hatching, holes, larva, mud, pollen, show, stores, urban, yellow