Disc 1 . To fly or not to fly? / producer, Mike Salisbury ; The mastery of flight / producer, Fergus Beeley ; The insatiable appetite / producer, Mike Salisbury ; Meat-eaters / producer, Fergus Beeley -- Disc 2. Fishing for a living / producer, Nigel Marven ; Signals and songs / producer, Peter Bassett ; Finding partners / producer, Peter Bassett -- Disc 3. The demands of the egg / producer, Miles Barton ; The problems of parenthood / producer, Miles Barton ; The limits of endurance / director, Joanna Sarsby ; producer, Miles Barton.
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