Water voles now thriving after being reintroduced to the River Beane last summer hertfordshiremercury.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from hertfordshiremercury.co.uk Daily Mail and Mail on Sunday newspapers.
New digital technology allows visitors to learn about local wildlife from their smartphones, and a brand new island viewing hide has been constructed as part of several changes to nature reserves in Somerset.