Found in an acquaintance's yard. She has kids & dogs that play in the yard and I'm trying to convince her that it's harmless, but she wants a positive ID and I haven't been able to nail one down. Copperheads can be in the area, but I don't think it is one. Ditto for rattlesnakes. But what is it? Fox snake? Juvenile Black Rat? Looks too big to be a juvie. Milksnake? Prairie King? Help Please!

Can see head just a bit:

Location found:

These are all of the pics I have. I'd hate to see this gorgeous, apparently healthy, well fed, adult harmed