A series of six programmes with David Attenborough

Charles Waterton was a country squire - known as the Wanderer - who came from Yorkshire. John James Audubon, a 'backwoodsman' from America, was a painter. They were both 19th-century naturalists and world-famous, but they didn't like each other.

Today David Attenborough traces the history of these two very different men and visits the ruins of the once famous bird sanctuary that Waterton built - the first in the world.