When I looked out....

....my bathroom window at 6am this young Hare
was chasing the Crows in the barley stubble field:
The Crows were flying, almost lazily, leading him on
then flying back to where he had started chasing them from.
They all kept going at this for three quarters of an hour
then gave up and all foraged together.

I've seen Crows tease Cats like this.

I don't think an older Hare would have bothered chasing them.