What is it with the copperhead this year? I had one in the backyard , which got away before I could get him with the hoe - he didn't make it though neighbor got him the next day, or at least we think it was the same one. Neighbor down the street had baby copperhead killed 4.
I don't know, can a copperhead make it up a tree, if you have one near the patio maybe that's how it made it up there.
Glad your ok - I hate close encounters with snakes.