The king bird-of-paradise (Cicinnurus regius)

The species is polygynous, with the promiscuous adult males displaying in isolation at exploded leks and in groups at traditional arboreal courts. They are perhaps more persistent callers than any other birds of paradise. Courtship involves complex vocalizations, feather manipulations, and a variety of body posturing and movements, including hanging fully inverted and pendulum-like swinging. An extraordinary courtship display is performed by the male with a series of tail swinging, fluffing of the white abdominal feathers that makes the bird look like a cottonball, and acrobatic movements of their elongated tail wires.