Flying with Condors. The best place to study an animal is in its natural habitat, but that poses logistical problems when dealing with condors in the Patagonian Andes. These majestic birds with a 10ft wingspan are nature's most accomplished gliders. Enter world champion hang-glider and paraglider Judy Leden , who risks personal injury to fly with the lords of the South American skies. Sean Pertwee narrates. Director Richard Matthews ; Series editor Tim Martin
Repeated next Sunday www.bbc.co.uk/nature