'We need to save our precious oak trees to protect some iconic wildlife species'

Blenheim Palace is best known as the birthplace of Winston Churchill.

But it also has another claim to fame – it’s home to one of the most biodiverse spots in England.

Its woodland in High Park boasts at least 60 oak trees which have been dated back to the Middle Ages. Experts say one of them is over 1,000 years old – probably the oldest oak in Britain.