Will the bison react to a solar eclipse?


Tomorrow my part of the world is supposed to experience a solar eclipse and, while many people will be trying to view the sun, I will be watching the bison.  Will they react to the eclipse?  I have no idea, but I will report whatever happens in my next post.
A view of what the eclipse should look like tomorrow afternoon from my latitude.  This was generated with the free software program Stellarium, which I highly recommend.
While it won't be a total solar eclipse, it should be enough for them to notice, but will they care?
As a flock of cowbirds settles in around this bull he shifts his eyes slightly, but does not react.  Bison perceive and react to things differently than humans.  Our herd could care less when a pair of low-flying F-15s pass overhead, but the sight of an unknown human walking in the pasture can induce a panic. 

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