No foxes, including the gray fox, hibernate, estivate or migrate.
The gray fox does not hibernate in winter and remains active all year long.
The gray fox does not hibernate in winter and continues much the same routine as during the warmer months.
No they do not hibernate.
Swift foxes do not hibernate. No foxes hibernate.
Gray foxes have to move to find food, shelter, mates...basically they have to move to survive. They may change the location of their den if they feel threatened or if they feel their kits (babies) are threatened. It may also just simply be time for a new den. Wild animals move around quite a bit, especially females with young. Larger predators who could potentially kill the young have a harder time finding the mother and her little ones that way.
I don't think any kind of foxes hibernate
There is no species of fox that hibernates.
Foxes are not known to hibernate. They are year round hunters. The only time they return to their den is after mating.
Some. Not all. Fennecs, and I think reds, don't.
As hibernation means sleeping for the winter, it is unlikely. Fennec foxes live in the deserts of North Africa.
Gray foxes have their kits in the spring, usually April or May.
Gray foxes reproduce sexually, as do all mammals.