My up slope side of the pond is nothing but a rock bank going down 3-4 feet to the pond. I read that herons will not walk on irregular stacked rocks................yeah right! I watched the heron come and wander down the rocks as if they did not exist.
So my high hanging net now hits the bank on that side drapes down on the ends and on the bog side. The herons , so far, just keep flying as they go over our pond.
The last time one visited I watched it work the yard for over an hour, snagging bugs, a frog here and there, but no fish. It circled the pond for over 45 minutes before it gave up and started working the yard.