Blackbird gets a fish.

Observation - Blackbird gets a fish.. Description: Had to top up pond and saw bird emerge from reedy area with small goldfish.Bird whacked fish as I watched.When I moved she flew a bit further and carried on in same way.Did not appear bothered by me .We had been away for a week so garden undisturbed by p

Had to top up pond and saw bird emerge from reedy area with small goldfish.Bird whacked fish as I watched.When I moved she flew a bit further and carried on in same way.Did not appear bothered by me .We had been away for a week so garden undisturbed by people.No camera.Opportunistic bird?