Now i know that every stillwater lake has leeches, but yesterday i saw something i have never seen before and hopefully was going to get some clarification on this one. There were leeches crawling out of the lake in low 30 degree weather in the bright sun and searching for something or trying to possibly get away from something. There were hundreds of tadpoles swimming in the reeds and thought maybe they attack leeches? Some of these leeches were 8+ inches long. This is a real noodle scratcher for me and im really interested in finding out why?