New Guinea is a true garden of Eden for birds. Some of the most unique are birds of paradise. With plenty of food such as nuts and fruits and very few natural predators, they've been able to leisurely hone their courting skills. The ribbon-tailed astrapia flaps its long white tail feathers, while the blue bird-of-paradise unfurls its feathers to create a pulsating eye-like shape. Since they live deep in the jungle, their courtship displays have long been steeped in mystery. Tadashi Shimada,