We know, or think we know some things about how birds navigate using magnetic fields and possibly smells. But the magnetic signals are really weak, and birds without it still manage. Scent we're not sure. Here's a fascinating listen into another possible way migratory birds might navigate. I have to say that I like the idea of calibrating their system with the sunset ... I think Andrew Huberman might agree.
https://open.spotify.com/episode/7gk2iSvGmVw0tLnCrCR1zA?si=27a1d51b86d0457a
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