'Electrosmog' disrupts orientation in migratory birds, scientists show

For the first time, scientists have demonstrated that the magnetic compass of robins fails entirely when the birds are exposed to AM radio waveband electromagnetic interference -- even if the signals are just a thousandth of the limit value defined by the World Health Organization as harmless.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/G...