Magnetic Shift and Birds?
I happened to note the other day that a runway (Aircraft) was being re-designated by the FAA, in I think La. The article noted "due to magnetic shift".
Since I'm a Pilot, it piqued my interest, and I found that it's occurring all over, 'the World'!
Below is a sample Q&A at an Aviation Site.
The closer you are to the poles, the bigger the effect is from magnetic shift and the more "often" (note the quotes) runways will be redesignated. Runway re-designations are however ..."
Rather than go into very technical aspects of aviation navigation I'll just comment that there are "Magnetic Variation" factors that are applied as you navigate, IF you navigate these days (due to GPS units). They are noted on your Charts.
It appears that 'Possibly' the polar shift has increased in recent years, and my thoughts run to whales, porpoises, other sea creatures beaching, if that is the cause. But now we're seeing Birds, that Navigate much the same way, having problems.
Any body got thoughts on this?