I hesitate to post this thread because you might think I need to go to the looney bind but I swear its the truth. I have seen it twice 20 years apart. Both times it was in the late summer, I think it has something to do with the roll over of the lake or oxegen content of the water. But shad, gizzard and threadfin by the thousands coming to the top of the water. You could see the reflection of the moon on the water and you would think it was raining because of all the shad hitting the top of the water. When you moved the boat you could here them hitting the side of the boat and some would jump into the boat trying to get away. I have never caught a fish when this was going on I think they were gourging themselves on shad. Has anyone else seen this happen? Do you know what causes it?