The Nature of Britain Where You Live: Wales - Urban Britain

Cardiff may not seem like the obvious place for wildlife, but from its built-up heart to the river that runs through it, this city is jam-packed with natural wonders. A pair of peregrine falcons has made their home on City Hall's clock tower. Iolo Williams joins RSPB volunteers who are on hand with binoculars and telescopes at the National Museum to give the public a close encounter of the feathery kind. And it isn't just the high buildings that attract wildlife to the city. In winter salmon travel to their spawning grounds on the upper reaches of the River Taff. Local primary school children are learning about and helping to rear and release more salmon into the river as part of the Salmon Homecoming Project.