>>>>If your turtles are still demanding food I would let them eat. At least thats what I do and have never had a problem. I know some people will tell you that they need to clean there gut before hibernation but there is no one restricting a wild turtles behavior and feeding habits. I figure they have been doing what they do in the wild for hundreds of thousands of years or more. If they are hungry who am I with a mear 15 years of experiance to tell them they can not eat. I let them be as wild and natural as they can be in the back yard.
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>>Just my 2 cents
I like your 2 cents. I felt the same way, if she's demanding food then who am I to refuse her? I didn't refuse her, today it's supposed to be in the 70s so there's a good chance she'll be out again so I'll make sure she has plenty of water to soak in if she wants to. That will clean her out.
Wallinda refused food a week before I stopped seeing her so if she didn't want to eat that's they way it is. They are outdoors, they can pick off bugs when they see them if they want to.
Even though my girls are tame, aren't all reptiles basically a wild animal? They aren't really domescticated animals so I kind of do things based on what they're "telling" me they want.
Last year Hobo, my wild boy ate a cactus berry less than a week before he went under. He knows what he is doing so I figured if he wanted to eat it, I'm not going to take it away from him.
I don't know exactly what the non captive ones out in the wild are doing so with the box turtles who live here I do things for them basically the way I do things with my tortoise- she knows what she needs/wants and at 70 to 75 lbs I can't really make her do anything she doesn't want to do.
Yet I still worry.. if we can get through this year without a problem, I'll stop worrying so much.
5 years with an ever growing tortoise who does just fine outside year round has made me stop worrying myself silly over her. I can do the same with the turtles, it'll just take time.
I feel like I have coaches here now.. I'm getting into my game. 
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PHRatz