Birdie Magnetic Sense and Human Generated Electromagnetic Fields
10,000 Birds
MAY 20, 2014
However, we now understand that birds vary in how they navigate, and many if not all bird species use multiple approaches to navigation. Also, consider the possibility that modern birds descended from an animal that migrated by foot, or a form that flew only a little now and then but was mostly terrestrial/arboreal and not aerial.
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