On 05 May 2004 18:31:42 GMT, ojunk (Gill Hall) wrote:

Thank you all for the helpful advice. I think I'll plump for Sacha's advice -
that of the string round the edge. This is the second time we've had a
devastating clearout, and I now remember that there is a heronry at Englefield,
just a couple of miles away. Bother. Not that I don't like herons - they're
beautiful birds.

How about replacing the fish with plastic fish. Who would the
difference? :-)