Iolo Williams explores the borderlands of north east Wales. Iolo begins his journey on a moor near Llangollen to see hen harriers, one of our most threatened birds of prey. He sets his alarm for 4am to catch one of the best wildlife spectacles in Britain – the black grouse lek. Next stop is an important nature reserve on a bog with an astonishing mix of wildlife including raft spiders, dragonflies, and hobbies, a bird of prey that migrates from Africa.