Bison reaction to solar eclipse = nothin'

 Some of them literally slept right through it, some grazed, others chewed their cud, and a few watched me.  Perhaps they wanted to see how a human would react to an eclipse. 

As the sky darkened during the eclipse and the air cooled, a breeze picked up around us.  Thunder boomed from a storm to the north of us and small birds issued alarm calls from trees in the distance, but the bison didn't seem to care much.