I don't think that's a copperhead. It has round pupils. I've seen a bunch of copperheads, cottonmouths, kings, water snakes and one huge hognose snake this year already.
When the Missouri came up the snakes did too.
I bought a wooded lot in the St Louis metro area that had a shag bark hickory on it. I left it in place but after grading the lot it did not do well and had to have it removed. Even the guy at the tree company commented on the rarity and size. I still have 6 persimmon trees though and the deer love them. They eat the low hanging fruit in the fall then take to jumping to get the ones higher up. My neighbor called me and said you have jumping deer out behind your house.
I gave up on carp on the fly. Tried everything from CDC fluffs for Cottonwood blooms to buggers. Fished areas with literally hundreds of them not a whiff. Put down the fly rod and chunk in a piece of corn and fish on one after another. The only difference I've seen is I fish real muddy water for them.