[RadioAstronomer]

Oh man, when that happens-- I'd hate to be a plane in the sky relying on my GPS navigation at the time.

Not to worry. GPS is a satellite nav system.

I am not worried about the magnetic pole reversal. I also do not think that has anything to do with the birds.

[MrsEmmaPeel]

GPS is a satellite nav system.

Sure, but a GPS can tell me my compass direction too, right? Wouldn't that part be screwed up?

In your opinion what would account for birds falling from the sky in both hemispheres (China -- NZ )?