How do I keep herons from eating the fish in my pond?

April 1, 2009
Herons, like this Great Blue Heron, are top predators that will help themselves to easy prey. Photo by Joni Romnes Welzien via Birdshare. Herons, like this Great Blue Heron, are top predators that will help themselves to easy prey. Photo by Joni Romnes Welzien via Birdshare.
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I can certainly understand not wanting the birds to eat expensive fish! Of course, the birds have no concept of the value of koi, and are simply doing what they do best: find and eat fish.

To get herons to pursue their livelihood elsewhere, people have tried a variety of techniques. Unfortunately, we at the Cornell Lab of Ornithology have different goals, and actively encourage herons to visit our pond here in Sapsucker Woods. For suggestions, visit the Royal Society for the Protection of Birds web page on deterring herons. The Gray Heron of Great Britain is quite similar to our Great Blue Heron, so ways of dealing with either will be quite similar.

You can read about the Great Blue Heron and other herons and egrets in the All About Birds Online Bird Guide.

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