Greater Bird-of-paradise

The greater bird-of-paradise is the largest member of the genus Paradisaea, with "the most glamorous display in the bird world". The males measure up to 43 cm (17 in), excluding the long, twin tail-wires. The female is smaller, at roughly 35 cm (14 in). The plumage of this species is highly sexually dimorphic; the male is highly colourful, with a notable profusion of yellow tail feathers which are used in courtship displays. The flank plumes are yellow at the base but turn white, streaked with maroon-red. Voice: Males use eight variations of calls, commonly referred to as "wauks" within courtship rituals, each linked to a section of the courtship dance: Rising call: A series of four or five "wauks" repeated at one-second intervals. The first two notes are of approximately equal volume and the subsequent two or three are of increasing volume and intensity.