That is possible, however, the pond is in my backyard less than 50 yards from my house.
I'm not sure that someone could have come and caught all the large bluegill without me knowing. However, I have wondered if someone came in (at night or when I was gone on a weekend) and shocked the pond removing the large bluegill and largemouth bass. What effect does shocking a pond have on snakes that might be in the pond? I ask that because last spring about the time I stopped catching large bluegill a "very ill" water snake that had been in my pond turned up on my front porch. It would not react or move when poked with a stick. Something was definitely wrong with it. I didn't think much about it at the time, but have since wondered if someone shocked my pond and left the snake on the front porch for me.
I know that sounds far-fetched, but I can't come up with any other reason why my pond is missing the large bluegill.
