Most of my Dolphin articles have been groups fishing together. I do have a series of photographs never published of a single Dolphin spinning/splashing schools of fish.
The Dolphin below swam close to the shore slowing pushing fish forward.
A short distance further, when they were grouped up he quickly spun around them in a fast tight circle.
When he had them bunched close enough he almost had a whirlpool.
Splashing with his tail he pushed them towards shore.
And caught them.
They don’t always strand these fish either. If they have enough of a circle and whirlpool made slamming their tail down stuns the fish and they are caught that way also.