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Head forester Nick Baimbridge measures a giant oak.
Ancient oaks harvested for tiny acorns...
Foresters at Blenheim Palace have painstakingly gathered 3,000 acorns in a bid to guarantee the future of Europe's largest gathering of ancient oak trees.
They were picked up in High Park, a wooded area of the 2,000 acre Blenheim Estate in Oxon, Sir Winston Churchill's birthplace.
It was originally created by Henry I as a deer park in the 12th century, with some surviving trees still standing 900 years on.
The tiny oaks are currently being raised in glasshouses and small plantations and will eventually be planted across the estate.
It is hoped the saplings, all direct descendants of the original trees, will help ensure the legacy of Blenheim's ancient oaks lives on for centuries to come.