TIL: Why Do These Birds Eat Dirt?

TIL: Why Do These Birds Eat Dirt?

Chips, pretzels, dirt—it turns out all of these things can fix a craving for salt! A behavior known as pica, the craving for substances other than food, has been documented in the macaws of the Western Amazon who lack certain nutrients in their diet. Join ornithologist and National Geographic Explorer Luke Powell to learn what makes South American rainforest clay so tasty.


5 - 12+


Biology, Ecology

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Web Producer
Sarah Appleton, National Geographic Society, National Geographic Society
Last Updated

October 19, 2023

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