One of the country’s leading bat experts will talk to Wharfedale Naturalists Society in Ilkley on Tuesday.

Professor John Altringham, of Leeds University, will give two talks, Bat Conservation in Leeds, and Beyond Bats – Working with the National Trust, at Christchurch, The Grove, starting at 7.30pm.

Visitors are welcomed for a £2.50 entry fee, or annual membership of the society costs £12.50.

Contact the president, Peter Riley, on (01943) 862916 for more details.