Personally I would just enjoy and accept the heron even though it will take your fish

You could try putting it on a lower setting? If you put a net across the pond that might stop the Herons visiting?

I bought some childrens windmills from the garden centre and ( if its windy ) seems to work a bit

to mg..thanks but my fish are expensive
to Drc726...thanks but lower setting wouldn't catch heron and don't like netting as I've used it once and didn't look natural
to Pamq...thanks

by a big cat or do what my brother does and he zigzags fishing wire over the pond and as its cleare so it doesnt look so bad

I think that I read somewhere that there's an electric fence that you put around the pond thats supposed to deter him from getting too close

There's a plastic heron statue thats supposed to work,it does with my mum's pond.....so far Ive been lucky enough with mine useing nothing,I hope that dont change now :-) good luck....

Thanks dee2uk. Have plastic heron. Real one comes down to it and tries to kiss it. Waste of good money for me. Keep up the good luck:-)

Koi you do not want to net your pond because it 'isn't natural' but you do want the heron to stay away... the heron is 'natural'. You either need to take 'un-natural' means to keep the heron away - such as netting the pond - or accept that your expensive, fancy, fish are going to get eaten.

I personally do not see a 'natural/pretty' solution. You have set up an 'all you can eat' bar for the heron and it is obviously going to come and feed. I can empathise with you but you either net or let nature take its course so far as I can see.