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Smithsonian National Museum of Natural History, North American Mammals

  Carnivora · Canidae · Urocyon cinereoargenteus

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Urocyon cinereoargenteus

Gray Fox

Order: Carnivora
Family: Canidae

Image of Urocyon cinereoargenteus
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Conservation Status: Least Concern.

Gray Foxes are adept at climbing trees. They are active at night and during twilight, sleeping during the day in dense vegetation or secluded rocky places. Nursing mothers and pups use a den— a hollow log, abandoned building, tangle of brush, or cracked boulder—for shelter. When she is nursing small pups, the female stays within a few hundred meters of the den, but otherwise adults may range over a 2—5 square km area. Pups begin to forage on their own at about four months of age, and maintain close ties with the mother until they are about seven months old. By about ten months, both males and females are old enough to reproduce, and most females will have a litter annually from then on.

Also known as:

Zorra, Zorra Gris, Gato de Monte, Common Gray Fox

Sexual Dimorphism:



Range: 800-1,130 mm


Range: 3-7 kg


Schreber, J.C.D., 1775.  in Schreber's Die Säugthiere in Abbildungen nach der Natur mit Beschreibungen, Wolfgang Walther, Erlangen, 7 volumes, 1774-1846; 2(13):pl. 92[1775]; text: 3(21):361[1776].


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Distribution of Urocyon cinereoargenteus

Image of Urocyon cinereoargenteus
Urocyon cinereoargenteus (Gray Fox), Okaloosa
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Skull of Urocyon cinereoargenteus
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