This week, we worked on the first of our two annual bison roundups at the Niobrara Valley Preserve. Our roundups allow us to manage herd size and also to vaccinate and put ID tags on the new calves we’re keeping in the herd. We were working the animals from our west herd this week, which live in a 12,000 acre pasture. Our staff had spent a month or so drawing them into a relatively small “trap pasture” and then we pushed them from there into the corral on Monday. During a break in the action, I took a few bison portraits while they milled around the corral, waiting for their turn to move through the alleys.
After the bison were released back into the trap pasture, I drove slowly out among them to get some more photos. I was amazed at how calmly they reacted to my presence so shortly after they had been in the corral.