From Veritable Hokum. Check them out!
And yes, this Emu War actually happened. Roughly 20,000 emus migrated into the Eastern Wheatbelt area, discovering newly cleared farmland filled with crops and watering points for sheep. They liked this supply of food and water and were ambivalent toward the soldier settler (and other) farmers’ tough run of grain prices and droughts.
Since these were ex-soldiers facing ruin (from drought, grain prices, broken subsidy promises, and emus – blame the killer emus!), they liked the idea of using machine-guns (2 Lewis Guns) against the birds in the same way they’d used them against opposing infantry in WW1. This didn’t go anywhere near as well as expected. Emus are faster, harder to kill outright, and generally not running straight at a machine-gun embankment; so their casualties were low.
Two attempts were made at an emu cull, but ultimately the government decided to offer a bounty on emus instead. Later they went with the tried and trusted move of building a fence to keep the emus out of agricultural areas (along with dingoes, wild dogs, rabbits, kangaroos – although the latter laugh at attempts to build a fence they can’t jump over).