Originally Posted by Niagara Falls
As as DIY here, I found the best way to get them to stay away was A) BB gun and B) hang deer fencing from trees with artificial frogs in the mesh.
Apparently Herons prefer frogs to fish.
I've caught about 6 Heron this way....it's a little barbaric, as my wife says, but my neighbour likes them for what I don't know
Can't do this in the USA, Niagara. They are a protected species. Harming them in any way carries stiff fines and penalties.