Ostriches don’t do that! This untrue “Fact” has gone on long enough, let’s squash it! Here’s the truth:
MYTH: Ostriches bury their heads in the sand when they’re scared or threatened. … WHY IT’S NOT TRUE: Ostriches don’t bury their heads in the sand—they wouldn’t be able to breathe! But they do dig holes in the dirt to use as nests for their eggs. Several times a day, a bird puts her head in the hole and turns the eggs.
Wulff & Morgenthaler