I cleaned out two diamond backed water snakes and a small cotton mouth out of my big pond last month. The big diamond backed water snake measured 49" when stretched out. last year I killed one that was nearly 5' and full of small BG.



and for you snake lovers, I killed this pair right behind my shop a few years back:





and these two a few weeks prior: (large one was a cotton mouth)




as far as king/garter/ribbon/rat/chicken snakes go, they are left alone. If chicken or rat snakes are too close to the house I will give them a lift out to the woods or pasture.