Charles Darwin scratched his head over the purpose of bowers, the carefully tended sex dens of the bowerbird. But few scientists had conducted studies of these ornate constructions and their ...

Donald, a Macgregor's bowerbird, lives in the dark woods of the Adelbert Range of Papua New Guinea. Here, atop a mossy platform and around a young sapling, he has woven his spire of sticks and twigs.

In order to capture the dazzling, courtship display of the little-known Flame Bowerbird the crew first had to reach a remote forest in Papua New Guinea, a 6-hour boat journey from the nearest town.

4) Male great bowerbird – Birds can build optical illusions Many animals display to impress potential mates but few are known to build a structure specifically designed to enhance their performance.