Hi There,
I grew up in Monmouth County New Jersey and we always had a pen that we kept a couple of Box Turtles in behind our garage. I can remember seeing them " come up" in late February if we had a few warm days. They would then again, disappear for 3 or 4 weeks if we got more cold weather. I think that the Box Turtles know just what to do! Glad that you are into box turtles, I have one Western Ornate (Captive Bred, ( don't believe it) and one baby Eastern, Captive bred (FOR SURE) and will soon be getting another captive bred baby. FYI, I don't know where you are from, but I grew up in West Cental NJ. Last year, I rode my bike on the trail from Keyport to Belford and saw 2!! very highly colored males on the trail. I did not think that they were even around anymore!! I hear that the Natco Lakes nature preserve is a GREAT habitat for box turtles.
Take care,
Lloyd