In the forests of Papua New Guinea, where 38 of the 42 kinds of birds of paradise are found, David Attenborough and a film crew spent over nine months recording the behaviour of these birds. Hoisted up above the forest canopy, the view of birds of paradise in every conceivable hue -- a fabulous riot of greens, blues, scarlets, yellows -- is a spectacular sight. Meanwhile, down at ground level, the footage of the birds of paradise courtiing rituals stand as some of the greatest wildlife images ever captured.