Pigeon problems: How do they get home?

New research has shed some light on one of the great mysteries of life - just how do pigeons get home?

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Life's great conundrums - The Pyramids, Stonehenge and pigeons...

When we think about life's great mysteries you might think about how Stonehenge was built. Or the Pyramids. Or why pilot's instruments go haywire in the Bermuda Triangle

But the riddle behind one set of pilot's navigtion skills may have been solved. Homing pigeons.

One university professor thinks he might just have the answer. After an investigation Dr Richard Mann believes roads, hedges and familiar landmarks provide a sort of pigeon Sat Nav.

But a pigeon fancier in Leeds thinks the theory is just another flight of fancy.

Helen Steel has been the cat among the pigeons:

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