>>well i am against taking wild turtles out of the wild but this one is thin and wont make it if he would hibernate.

I am against it too when they are fully healthy turtles who don't need me. For those with special needs who aren't healthy & won't make it on their own, I have no problem at all with taking them from the wild.
Missing a foot though & possible illness, if I were you I wouldn't feel one bit guilty about keeping this one inside for the winter.
Good luck with this one!
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PHRatz