I have a very small 11 yr. old pond in our landscaping. We are surrounded by numerous ponds, creeks and a wildlife bird sanctuary. We see herons all over but they never found my pond until this winter. In February we had 22 inches of snow and everything was frozen over except my pond(I use an electric de-icer). I found my 28" 10 year old koi picked apart and lying on the snow bank:( My smaller fish were able to hide I assume. Last week I scared the heron again and he dropped another koi about 50 ft from the pond and I was able to save it.
Is there anything I can do other than keep it covered with netting?? I still can't believe after all these years I am now having issues. The herons travel each day from a large pond across our pasture to a large lake 1 1/5 miles away. We have watched them every day for years. Do you think they will leave my pond alone as the weather gets nicer or am I stuck with netting?