Bat flies with Dr Erica McAlister

S4E38 We return to London's Natural History Museum. This time however, we're in the bowels of the Diptera collection with flygirl herself, Dr Erica McAlister. If you think you recognise that name it's because Erica has graced the airwaves several times before including BBC Radio 4's The Infinite Monkey Cage and The Life Scientific. As you'll hear in this episode, Erica needs help from those of us who regularly handle bats. If you're a bat carer or a bat worker who undertakes bat box checks or...