"Unraveling the Disruptive Radio Waves on Migratory Birds' Magnetic Sense"
Originally Published 2 years ago — by Phys.org
A study has found that radio waves emitted by radio and television broadcasting and CB radio can disrupt the magnetic compass of migratory birds, while those used in mobile communication networks do not. The researchers theorize that the magnetic compass sense in these birds is based on a quantum-mechanical effect located in their eyes. The study determined the upper bound frequency that disrupts the birds' magnetic compass and found that frequencies above 116 megahertz have only a weak effect on their magnetic orientation. Understanding magnetoreception is crucial for protecting migratory birds and avoiding electromagnetic radiation that can drive them off course.