Got hit for the second time this year. First time he only got some comets. This morning he nabbed one of my largest and best koi. I've had the pond netted up until the last couple days. I hadn't see a heron in a couple months so I though I was safe. Turns out I was wrong. I'm now looking to build a roll that will be able to roll the net up with ease, kind of like a pool cover. That way I can easily net the pond when were not around. Anyone else have something similar?