Magnetic field changes activate the trigeminal brainstem complex in a migratory bird

Non-nerds need not apply.. After reading the Abstract, I think my ears are bleeding.. Bottom line: The trigeminal nerve in birds transmit magnetic information to the brain, and magnetic disturbance effects that information. Two pronged thought(s): If this is, in part, an explanation for the mass bird deaths, can the same be said for the fish/amphibian die offs? Might fish have a similar "sonar" navigational system, and/or might their nervous systems be effected by a sudden change in magnetism? As of yesterday, no official explanation for the fish deaths in Ozark, Arkansas(according to this horribly written article--scroll down mid-way) has been identified as the cause.
Solar magnetic activity during the three week apex of animal die-offs was low(Jan.1-21), so could tectonic activity or a pole shift generate enough and varied magnetic disturbance to this end? Or maybe, something else..
Now that Solar flare activity has increased, might we see similar events? If not; why?