Road tripping with the fam today & brought up the article about how birds can see the Earth’s magnetic field because of a liquid in their eyes with a fellow nerd, my 12 yr old son. His first reply was to ask if that is why birds sit on power lines instead of the trees that are readily available? Of course I don’t know but it got us into a 20 minute conversation about all types of possibilities like do they see other magnetic fields from large metal structures? Big metal ships in the middle of oceans? Do they pay particular attention to power plants & mountains with heavy metallic ore deposits? Are they affected by solar flares or movement of the metallic magma under Earth’s crust? But what got me the most curious is an article I read recently about another unexplained massive bird kill where birds fell out of the sky with swollen eyes for no known reasons at all. Maybe its magna or solar activity causing the “compass liquid” in their sensitive eyes to go haywire? Any thoughts?
From the linked article below:
“The ophthalmic symptoms can be surprisingly swollen eyes, eyes that jut out of the head a little bit. They can be crusty eyes; they can be blindness. The neurological symptoms can be things such as a shaking head, an inability to stand, involuntary muscle spasms in general. [They] can be depression or lethargy. When you observe one of these birds with this neurological set of symptoms, it’s fairly obvious, because they’re simply unresponsive.”