There are five species of foxes found in North America but only two-the red and gray are town or city dwellers.
Foxes are canids and close relative of the coyotes, wolf and the domestic dog.
No fox, however inter breeds with these other forms. Gray foxes are known to be native to North America, but whether or not the Red fox was ever native is still debated. Its seems likely that they were arriving by the same land bridge humans did during the last ice age. Many certainly were brought here from Europe in the 1700's to carry on the hunting traditions started there. The Red fox is the bigger species weighing 7 to 15 lbs and reaching 3 feet in length with an extra foot or foot and a half long tail.