Daughter Rachael had installed a pond in her back yard.
Just a small vacuum molded thing. She stocked it with a few fish.
We were sitting looking out the window one day when this huge grey heron came down. This bugger was bigger than the bloody pond. He stood looking for a minute or so. stuck his head down, grabbed one of her fish and flew off.
Now for a really expensive feeder and food try a pond with some fish.