BREEDING: Sierra Nevada red fox breeding occurs between December and March. Mating and den construction occur in January and February; the foxes are believed to be monogamous. The gestation period is ...

Red foxes do, however, typically have black legs ... and marshes. They’ll select a den site that’s in some sort of rocky crevice, or even in a hole in a tree. Unlike other fox species ...

The animals have always been on the Island, but "over the last decade or so their population has grown substantially." ...