Quote:
Originally Posted by dad911
Blue Heron found my ponds. I could never keep fish in it again.
I suggest something to keep the birds out.
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We had a Blue Heron have an expensive meal at our pond. By federal law it is illegal to harass them and chase them off. Fortunately our dogs don't know the law and weer will to risk barking and chasing it off. Astonishing to see a bird that big, fly straight up.
This is our Koi pond. You can see the posts, that are copper grounding rods. I drilled a horizontal hole near the top of each post. My wife strung fishing line in a star pattern crisscrossing the pond. The line is really hard to see in this photo, but it is strung from post to post and across the pond. She sometimes ties on a old CD as something shiny to catch the birds attention as well.
That is supposed to be what the Japanese do to prevent cranes from eating the Koi. The birds see the fishing line, and they are worried about getting caught up in the line. At least that is what we heard.
We put up the line 5 or 6 years ago. Since then, no Blue Herons or any fish predation. Our house is right on a flight line between two large lakes for many migratory birds.