Green Balloon Club - Episode 21

Lily-Rose and friends travel Great Britain in a green hot-air balloon hearing stories from children. As part of the Autumnwatch season Green Balloon Club team are having a good look at autumn - how the leaves change colour and whether it is possible to preserve their lovely shades. Jelly pays a visit to Bill Oddie and finds out what's happening in his bird boxes at this time of year. Many birds migrate now, but Jay and the Ground Crew have a look at the ones that stay at home and find out how experts research their lives. And Green Balloon Club members Annabelle and Jessica set one of the stay-at-home birds as this week's spot.