Just going by what I read on google, apparently ants do this when they lose the pheromone scent that keeps them in contact with each other so they get confused and just walk in circles until they die
Seriously? If this behavior was normal or common you would have 100 comments on the video from farmers and botanists saying so. These explanations are hocum. I have seen ants and ant hills my entire life and never once did I see a huge mass of ants just walking around and around in circles.
The sheep were in pen #13 and none of the other sheep were doing that.
There was a massive herd of reindeer doing this.
There was a good size flock of birds just circling a field over and over again.
Obviously there is a reason for this and no doubt if this is common someone will come out with video showing they have seen this happen repeatedly in the past.
On the other hand if this is something new we will probably see it again and again in the next few weeks which is why I thought this thread should be started. We can journal that.
If we don't see it again then no doubt in two months no one will be able to give it any more time or thought.