The Standardwing bird-of-paradise, known scientifically as Semioptera wallacii, is a medium-sized bird, approximately 28 cm in length, with a predominantly olive brown plumage. The male is distinguished by a glossy violet-and-lilac crown and an emerald-green breast shield. Its most remarkable feature is the two pairs of elongated white plumes that extend from the bend of its wings, which can be raised or lowered at will. The female, while less ornate and smaller, has a longer tail than the male.
When identifying the Standardwing, look for the male's unique wing plumes and vibrant green breast shield. The female is more subdued in color but can be recognized by her olive-brown plumage and relatively longer tail.
This species is found in the lowland tropical rainforests and hills of Northern Maluku, eastern Indonesia. It may also occasionally inhabit woodlands.
The Standardwing bird-of-paradise is endemic to the islands of Halmahera and Bacan in Northern Maluku, Indonesia.
Males of the species are polygamous and known for their spectacular aerial displays. They gather to perform, "parachuting" with wings and green breast shield spread, while the wing "standards" flutter above their backs.
The Standardwing's diet primarily consists of insects, arthropods, and fruits.
The Standardwing bird-of-paradise is currently listed as Least Concern on the IUCN Red List of Threatened Species, although its habitat is increasingly fragmented. It is also included on Appendix II of CITES.