Do Ostriches Really Eat Stones and Iron? the Truth Behind Their Bizarre Diet

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The ostrich feeding strategy is inextricably tied to its water economy. Living in zones where surface water evaporates for nine months of the year, ostriches rely heavily on selective foraging to stay hydrated. In southern Africa's Kalahari, wild flocks actively seek out wild tsamma melons and succulent euphorbias, stripping them to obtain moisture.

During periods of extreme heat, an ostrich can reduce water loss through specialized physiological adaptations. Its kidneys produce concentrated urine containing pasty uric acid rather than copious liquid waste. The long colon reabsorbs nearly every droplet of water during the final phase of fecal consolidation.

When open water is available, an adult bird can drink up to 8 liters (2.1 gallons) in a single sitting, using scoop-like throat movements to lift the liquid before tipping its neck backward. If water holes dry up completely, an ostrich can survive for weeks solely on the fluid extracted from deep-rooted tubers, succulents, and succulent leaves.