Parent trap!

The curious nesting habits of South Asia’s pied hornbill…

Oriental pied hornbills go to extraordinary lengths to protect their young in the dense tropical

rainforests of South Asia, with the female imprisoning herself inside the nest!

This remarkable behaviour is captured on film in this week’s episode – about forest habitats – which also features dancing horned pheasants in China, whistling wild dogs in the teak forests of India and ‘spirit bears’ fishing for salmon in Canada.