What is the main reason the red fox is endangered?

It was endangered a long time ago because in the 1800's the red fox was considered pests to people. So they poisoned their food sources, trapped then, and hunted them in vast amounts. Also around 1900, many where killed accidentally from predator control programs that where aimed at removing (killing) wolves, coyotes and ground squirrels from the prairies. Today people still hunt them and trap them for their furs. Also they hunt them for the skill it takes to kill one because they are very clever and good at escaping predators.