Phil Noble—Reuters
May 9, 2014 5:39 AM EDT

European migratory birds are having trouble finding their way around because of man-made magnetic radiation, a new report shows.

Researchers believe electromagnetic waves from major cities, stemming from electronic devices, disrupt the internal compasses of the birds, hampering their natural orientation skills.

Henrik Mouritsen, co-author of the report published in the science journal Nature, says robins were better able to navigate when their huts were covered with aluminum plating to obscure the magnetic interference.

Otherwise, the electromagnetic waves disrupted the birds’ internal magnetic compasses, he says.

The study was completed through seven years of double-blind experiments.

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