Good article on the summation of information out there. I didn't know that bird's sense of navigation is linked to a "vision-based 'Magneto-reception'".

On my work I have sensed that birds weave the energy in the air. Some humans who have an uncanny ability to navigate without maps of GPS may have more magnetite in our brains. Perhaps we need to trust our innate sense of direction?

I wrote a piece - "Inner GPS" if interested. https://medium.com/illumination/inner-gps-7e29801b7590?sk=1b4e1151f3934ed1a9a82b70b26e9a14