…and the main herd has settled in…changing paddocks with no more than a whistle.  I’m sure you could set up an automatic gate opener and they’d move themselves. There are 33 pregnant cows in this group.  The section already grazed is in the foreground.  By enlarging the picture you may be able to see the single strand of polywire which is all we need to keep them together. The grass as we began was about a foot tall, and we’ve taken the top half before moving on.  In recent years a technique has developed called “mob grazing”…or “high intensity grazing”…that is jamming the equivalent of 500 to 700 cows into…