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Licking Clay: the Macaws of Tambopata, Peru

10,000 Birds

Geophagy, the intentional consumption of soil by vertebrates, has long been documented in a number of bird and mammal species – including wide-spread use by humans – which consume soil to increase absorption of certain minerals not naturally occurring in the local diet. That’s right – birds eating clay. Thanks for visiting!

Peru 254
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A Question of Migration

10,000 Birds

It turns out that humans without compasses make no use of magnetic fields.) Did birds repeatedly evolve migration because they ‘need’ to migrate more than, say, mammals? Eventually, it would be determined that birds have at least one way, and probably more than one way, to sense the earth’s magnetic field.

Research 188