There are lots of examples of herons taking on large species for food. Back in November 2019, I photographed a grey heron tackling an eel, and flying off with the eel still wriggling and writhing, to try and escape.
Mike
Flickr: Peak Rambler
I bet that was a sight to see Mike,
i love robins said:I bet that was a sight to see Mike,
It was.
I've managed to find the write up I posted here: The Spinnies, Aber Ogwen, Bangor 02 Nov 2019
and the full photo set are in my November 2019 Album.