Where might "Kangaroo Feathers" be found?

In 1915, at the beginning of World War One, both Australian and New Zealand troops fought against the Turks at Gallipoli. These ANZACS, or Australian and New Zealand Army Corps, were uniformed in khaki often with a metal or felt wide brimmed hat. The Australian Imperial Force (AIF) light horsemen wore a slightly different uniform compared to their fellow diggers with the main difference being the Australian slouch hat adorned with the emu feather plume.

The AIF light horsemen loved a good practical joke and when asked about their plumes would reply that they were in all actuality “kangaroo feathers.” This joke soon took its place amongst tales of the bunyip and drop bear and continues to this day to confuse aliens.