I don't know if it's a native species or not. I know nothing
about turtles. I've tried google to find some info on type,etc.
and the nearest it sounds like is a painted turtle by the description I read on some sites. I did read that they hibernate
and thought this critter needed to get out of the tank, if only
for that reason. The fish tank was not on the guy's porch this
evening. The weather has changed a lot since yesterday. It's
dropped about 30 degrees to the 40's. This neighbor is not a
mean person, just about as ignorant as I am about turtles. So
I thought I'd just tell him what I thought was best & buy the
turtle or have the guy turn him over to me.I'll ask him tomorrow
if he has brought him inside or whatever. Thanks, Liz.

p.s. He thinks he is a land turtle. He's definately not a box
turtle.