The Major Oak in the Sherwood Forest was between 800 and 1,200 years old.

The 1,200-year-old Major Oak in Sherwood Forest is believed to have died after it didn't sprout leaves this spring, the Royal Society for the Protection of Birds said Thursday.

Visitors who viewed the tree’s gnarled limbs and sprawling canopy in Nottingham over the past two centuries compressed the soil around it, making it difficult for rain to reach its roots, the conserva...