How Pigeons Navigate by Magnetic Field

Homing pigeonAn answer to the eternal mystery of how migratory birds know where to go may be at hand, writes James Gorman in the New York Times:

Birds are famously good navigators. Some migrate thousands of miles, flying day and night, even when the stars are obscured. And for decades, scientists have known that one navigational skill they employ is an ability to detect variations in the earth’s magnetic field.

How this magnetic sense works, however, has been frustratingly difficult to figure out.

Now, two researchers at Baylor College of Medicine, Le-Qing Wu and David Dickman, have solved a key part of that puzzle, identifying cells in a pigeon’s brain that record detailed information on the earth’s magnetic field, a kind of biological compass.

“It’s a stunning piece of work,” David Keays of the Institute of Molecular Pathology in Vienna wrote in an e-mail. “Wu and Dickman have found cells in the pigeon brain that are tuned to specific directions of the magnetic field.” Their report appeared online in Science Express on Thursday. Kenneth Lohmann at the University of North Carolina, who also studies magnetic sensing, said in an e-mail that the study was “very exciting and important.”

Navigating by magnetism includes several steps. Birds have to have a way to detect a magnetic field, some part of the brain has to register that information, and, it seems likely that another part of the brain compares the incoming information to a stored map…

[continues in the New York Times]

majestic

Majestic is gadfly emeritus.

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10 Comments on "How Pigeons Navigate by Magnetic Field"

  1. Clearly pigeons operate on a higher level of consciousness than us lowly non-flying humans

  2. I think disinfo.com should be renamed to random-articles-that-tickle-the-interest-of-the-contributors.com.

  3. Fuckin’ Pigeons how do they work

  4. how many did they have to kill to figure this out? that animal rights sexual fetish lady in london asks,,,

  5. these angry birds must be guided by some slingshot

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