King-of-Saxony Otherworldly Calls
Throughout their evolution, male birds-of-paradise have been under immense selective pressure to win the attentions of females. Even the King-of-Saxony's extraordinary head wires aren't quite enough. They've had to develop a display that includes waving the head plumes, rhythmically bouncing on a perch, and delivering an extraordinary screeching, buzzing, hissing call that sounds like anything but a bird.