"Gill Passman" wrote in message
...
As both herons and comorants eat primarily fish I very much doubt that
approach would work unless you set up a pond of sacrificial fish and made
it a bit more tempting than those you are trying to preserve.....it's the
fish they want...

And it can get expensive replacing the sacrificial fish. Plus there's still
nothing to keep them from going after your prize koi and goldfish. :-(

..It has to be said when watching
herons around the lake at the place I used to work they tended to be solo
operators but I don't know if this is the norm - but might explain why
placing a fake heron sculpture also seems to work with a smaller pond....

A heron looking for a mate will stop to check out the fake heron. Fake
herons are no guarantee to keep the real thing away. They do nothing for
King Fishers. I also witnessed a heron standing by one pond while another
worked the other pond next to it. For some of us nets are the only answer.

--
KL....
Frugal ponding since 1995.
rec.ponder since late 1996.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
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