Homing pigeons may use a surprising navigation mechanism

Birds lacking iron-laden liver immune cells lost their way until the sun returned

A gray pigeon with irridescent green neck feathers takes off from the hands of a person.

By releasing homing pigeons with disabled magnetic immune cells, researchers tested whether the birds needed these cells to find their way back to the roost.

Christian Ziegler/Max Planck Institute of Animal Behavior

Homing pigeons don’t rely on gut instinct to return to the roost.