European robin (Erithacus rubecula) on snow covered ground. Male robins are noted for their highly aggressive territorial behaviour towards other male

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European robin (Erithacus rubecula) on snow covered ground. Male robins are noted for their highly aggressive territorial behaviour towards other male birds. They even attack smaller birds without apparent provocation. Photographed in Kent, UK, in January.

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Size: 4250px × 2938px
Photo credit: © JOHN DEVRIES/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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