England’s Prince George has celebrated his first birthday with a trip to the Natural History Museum in London.

Two new photos have been released to celebrate the occasion, showing the young family enjoying a day out in the museum’s butterfly enclosure, according to a Daily Mail Australia report.

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The Duke and Duchess of Cambridge released a statement thanking members of the public for the well wishes they have received since their son’s birth last year.

‘We would like to take this opportunity on George’s first birthday to thank everyone over the last year, wherever we have met them, both at home and overseas, for their warm and generous good wishes to George and our family,’ they said.

According to his parents, Prince George is already walking around Kensington Palace, opening doors and getting into things.

He is alleged to have a good set of lungs, which makes bath-time ‘quite painful’, and is said to be enamoured with his ‘best buddy’, the family’s spaniel, Lupo.