The bird off paradise species was described from specimens brought back to Europe from trading expeditions. These specimens had been prepared by native traders by removing their wings and feet so that they might be used as decorations. This was not known to the explorers and led to the belief that these birds never landed but were kept permanently aloft by their plumes. This is the origin of both the name “birds of paradise†and the specific name apoda – without feet.
Most species have elaborate mating rituals, with the Paradisaea species having a lek-type mating system. Others, such as the Cicinnurus and Parotia species, have highly ritualized mating dances. Males are polygamous in the sexually dimorphic species. Hybridization is frequent in these birds. Many hybrids have been described as new species, and in some forms, such as Rothschild’s Lobe-billed Bird of Paradise, even today some doubt remains whether they might not be valid.
Societies of New Guinea often use bird of paradise plumes in their dress and rituals, and the plumes were very important in Europe in ladies’ millinery in past centuries. Hunting for plumes and habitat destruction have reduced some species to endangered status; habitat destruction due to deforestation is now the predominant threat.
Hunting birds of paradise for their plumes for the millinery trade was expensive in the late 19th and early 20th century (Cribb 1997), but today the birds enjoy legal protection and hunting is only permitted at a sustainable level to fulfill the ceremonial needs of the local tribal population. In the case of Pteridophora plumes, scavenging from old bowerbird bowers is encouraged. When King Mahendra of Nepal was crowned in 1955, it was found that the bird of paradise plumes of the Nepali royal crown were in need of replacement. Due to the hunting ban, replacements were eventually procured from a confiscated shipment seized by United States Customs.
Hunting of birds of paradise has occurred for a long time, possibly since the beginning of human settlement. It is a peculiarity that among the most frequently-hunted species, males start mating opportunistically even before they grow their ornamental plumage. This may be an adaptation maintaining population levels in the face of hunting pressures, which have probably been present for 30 millennia.
An adult-plumaged male bird of paradise is depicted on the flag of Papua New Guinea. David Attenborough has nominated some bird of paradise as his favourite animal species, probably referring to Wilson’s Bird of Paradise.