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S6E61 Recorded in the winter of 2024, in this episode we travel to the Northumberland coastline to a National Trust property called Seaton Delaval Hall. We’re there because this property is home to the UK’s largest-known pipistrelle bat hibernation roost. For many years we haven’t really known where pipistrelle bats go to hibernate. Traditional hibernation surveys in underground structures rarely turn up pipistrelles and when they do they’re in very small numbers. Our guest this week, Tina Wiffen, discovered this roost shortly after the National Trust took over the care of Seaton Delaval in 2009 and since then has been doing some detective work to help us understand where we might need to go looking ourselves.

• Tina's articles in British Island Bats are on pages 20 and 30 of volume four.
• Original news article from the BCT website when a large winter count occured.
• Fancy taking part in a hibernation survey? Find your local bat group here.

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