Of the 2,000 pigeons let loose last week, only about 500 have returned to their lofts after the 150-kilometer (93 mile) flight between the cities of Ljungby and Malmoe in southern Sweden, said Lars-Aake Nilsson of the Malmoe Homing Pigeon Club.
There is a belief that a brain organelle contains magnetite. That organelle provides animals (birds) a reference to the earth's magnetic field. During periods of geomagnetic storms, the magnetic field is disturbed. This is not the first instance of birds becoming disoriented from an extended geomagnetic storm. Look for stories of beached whales in the next day or so. A similar phenomonon is observed.
There have been two different missing pelican stories, one missing pod of dolphins story, and now the missing pigeons.