This den is located in a suburban neighborhood in Kill Devil Hills on NC's Outer Banks. I happen to know the adjoining landowner.
I have watched this den site for several years. This year the pair had six kits, five of which survived to be 13-14 weeks old when the parents moved the den.
A weary mother red fox rests while two of her six kits try to get her attention. Anthropomorphically speaking, she looks both tired and proud to me, as if to say, these are my babies and aren't they adorable?