WHY does the homing pigeon always find its way home?

Judging from numerous experiments, pigeons use various principles of orientation, testing one by another. Close to home, they rely mostly on landmarks – say, they may fly along familiar freeways, repeating their curves.

When returning home from an unfamiliar place, pigeons, according to most researchers, orient themselves by the celestial lights (the sun and the stars), as well as by the magnetic field of the earth, which they sense directly thanks to the small magnetic particles in the upper part of their beaks.

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