This must be the cause of the mass bird deaths. The birds don't have updated navigation charts, so they're all flying into objects.
More likely they are flting until exhausted, trying to get magnetic bearings which are no longer there. The poles are about to collapse and then reverse. [Lech Wolenza not whithstanding]
“This must be the cause of the mass bird deaths. The birds don’t have updated navigation charts, so they’re all flying into objects.”
Kind of like John Kennedy flying into the sea.