You are in California and thinking you need a heat source? Mine live outside in Eatsern PA, and hibernate underground in the cold months. I do not provide any heat for them. they live outdoors all year long.
The reason turtle number one may be confusing is that it MAY still be a bit on the younger side, and therefore not sexually mature. If that were the case, it might be a male. Hard to know now.
mine live outdoors. i have 4 three-toeds in PA, which is NOT their natural habitat. they are found much more south. Every year, they stop eating in the early fall. then they do whatever they want until they go underground. they still have water outside, but they stay down until about May. they...