The gray fox is a small wild fox found across large parts of North America. Its scientific name is Urocyon cinereoargenteus. At first glance, it can look similar to other foxes, but its short legs, gray coat, and black-tipped tail give it a different appearance.
One of the most unusual things about the gray fox is its ability to climb trees. It has strong, curved claws that help it climb rough tree trunks and reach places that many other foxes cannot.
Gray foxes live in forests, brushy areas, rocky places, and parts of the countryside where they can find food and cover. They occur across much of the United States, as well as parts of Mexico and Central America.
This fox is not strictly a meat eater. Its diet includes small mammals, birds, insects, fruits, and other foods that are available in its habitat.
The gray fox is also smaller than the red fox. Its body is built with relatively short legs, a long tail, and a compact shape that helps it move through thick vegetation.
Most gray foxes avoid people and spend much of their active time looking for food. They can use hollow trees, rocky shelters, underground dens, and other protected places for resting.
Breeding takes place during a specific part of the year, followed by the birth of a litter of young. The mother raises the kits in a protected den while they develop and learn how to find food.
The gray fox also has an interesting relationship with its surroundings. It can move through forests and brush where larger predators have more difficulty following it.
Its ability to climb, its unusual coat, and its flexible diet make the gray fox different from the fox most people picture when they hear the word “fox.”
There is much more to this animal than its gray fur. Its body measurements, diet, reproduction, habitat, behavior, and tree-climbing ability reveal how well it is adapted to life across North America.
What is a gray fox?
The gray fox is a member of the dog family, Canidae. Its scientific name is Urocyon cinereoargenteus, and it is the most widespread living species in the genus Urocyon.
How big is a gray fox?
Adult gray foxes are about 35 to 45 inches long from the nose to the tip of the tail according to the National Park Service. Average body weight is around 7 to 12 pounds, with larger individuals reaching about 15 pounds.
What does a gray fox look like?
The coat contains gray, black, white, and reddish-brown colors. A dark stripe runs along the back, while the tail has a distinctive black tip.
The legs are relatively short compared with the body. The muzzle is pointed and the ears are upright.
Why does the gray fox have a black stripe?
A dark band runs along the middle of the back and continues toward the tail. Coarse dark hairs also form a mane-like area along the upper part of the tail.
How much does a gray fox weigh?
The average weight is around 7 to 12 pounds. The National Park Service gives about 15 pounds as a larger body weight for the species.
How tall is a gray fox?
A gray fox stands around 15 inches tall at the shoulder. Its short-legged body gives it a lower profile than the taller red fox.
Where do gray foxes live?
Gray foxes occupy a large area from southern Canada through much of the United States and into Mexico and parts of Central and South America. Their range excludes large portions of the Great Plains and some mountainous regions in the northwestern United States.
What habitat does a gray fox prefer?
Gray foxes favor deciduous forests mixed with brush and woodland edges. They also use areas where forests meet farmland, especially when dense cover is available.
Can gray foxes live near water?
Yes. Proximity to water is associated with preferred gray fox habitat. Streams, ponds, and other water sources can occur near the forests and brushy areas where they live.
Can gray foxes climb trees?
Yes. The gray fox is the only living member of the dog family that regularly climbs trees. Its claws are partly retractable and curve around rough trunks.
How does a gray fox climb a tree?
The fox grips the trunk with its front limbs and pushes upward with its hind legs. Researchers have recorded gray foxes climbing vertical trunks without branches.
Why do gray foxes climb trees?
Tree climbing has more than one use. A gray fox can climb to escape a predator, reach food, or rest above the ground.
Can gray foxes climb down trees?
Yes. They can descend by backing down a vertical trunk or moving headfirst along a sloping tree.
How high can a gray fox climb?
There is no reliable universal maximum height for gray fox tree climbing. Scientists have documented gray fox dens as high as 10 meters above the forest floor in hollow trees and limbs.
Where does a gray fox sleep?
Gray foxes rest in protected dens and sheltered locations. Their dens can occur underground, inside hollow trees or logs, and among large rocks.
Can gray foxes sleep in trees?
Yes. Gray foxes have been found resting and denning in hollow trees and elevated parts of trees. A den has even been documented about 10 meters above the ground.
Are gray foxes nocturnal?
Gray foxes are active during the night and around twilight, although activity patterns can change with location and conditions. They can also be seen moving during daylight hours.
What do gray foxes eat?
Gray foxes are omnivores. Their food includes small mammals, birds, eggs, insects, fruits, nuts, seeds, and other plant material.
What do gray foxes eat in winter?
Small mammals become an important winter food. Cottontail rabbits, mice, woodrats, and cotton rats are among the prey recorded in the winter diet.
Do gray foxes eat fruit?
Yes. Fruit becomes more important when it is available, especially during warmer seasons. In some studies, plant material reached about 70 percent of the diet by volume.
Do gray foxes eat insects?
Yes. Grasshoppers, beetles, butterflies, and moths are among the invertebrates eaten by gray foxes. Invertebrates become more important in the diet during spring.
Do gray foxes bury their food?
Yes. When a gray fox has more food than it needs at the moment, it can bury the extra food in a small hole. It then uses scent marking to help protect and relocate the cache.
What predators hunt gray foxes?
Known predators include coyotes, bobcats, golden eagles, and great horned owls. A gray fox can escape a ground predator by hiding in dense cover or climbing a tree.
How does a gray fox defend itself?
Its first response to danger is often avoidance rather than fighting. Dense brush gives it cover, while its climbing ability provides an escape route when a predator follows it on the ground.
Do gray foxes live alone?
Adult gray foxes are largely solitary outside the breeding period. A male and female can form a pair during the breeding season, and parents remain with their young while the pups develop.
How large is a gray fox home range?
Reported home ranges vary from about 0.8 to 6.8 square kilometers. Animal Diversity Web gives an average home-range size of about 2.1 square kilometers.
When do gray foxes breed?
Breeding takes place during winter, with the exact timing changing across the species' range. Recorded breeding activity extends from December through March in some populations.
How long is a gray fox pregnant?
Gestation lasts about 53 to 63 days, with an average of about 59 days in the data compiled by Animal Diversity Web.
How many babies does a gray fox have?
A female can give birth to 1 to 7 pups. The average litter contains about 4 pups, with Animal Diversity Web reporting an average of 3.8.
How much does a gray fox pup weigh at birth?
A newborn gray fox pup weighs about 86 grams on average. The pups are born with dark brown fur that differs from the gray and silver appearance of adults.
When do gray fox pups open their eyes?
Young gray foxes develop rapidly during the first weeks of life, but the available sources do not provide one reliable opening-eye age that applies to every population. The pups remain dependent on their parents while they develop hunting skills.
When do gray fox pups start eating solid food?
Pups begin eating solid food at around 3 weeks of age. The parents provide food while the young gradually become capable of handling food themselves.
When do gray fox pups learn to hunt?
Parents begin teaching hunting behavior at around 4 months of age. The pups practice stalking and pouncing before becoming independent.
When do gray fox pups leave their parents?
Young gray foxes can remain dependent on their parents for about 10 months. At around this age they reach sexual maturity and begin dispersing from the family group.
At what age can a gray fox reproduce?
Both males and females can reach sexual maturity at about 10 months of age. This is close to the period when young foxes begin leaving their parents.
How fast can a gray fox run?
A reliable species-wide maximum running speed is not established in the scientific sources used for this article. Gray foxes depend more on cover and tree climbing than on a documented high-speed chase when escaping predators.
Are gray foxes dangerous to people?
Gray foxes normally avoid people. Like other wild mammals, they can bite when cornered or handled, so a wild fox should be observed from a safe distance.
Do gray foxes attack pets?
Gray foxes are predators and can take small animals, but they are not animals that normally seek out people or larger pets. Keeping pets away from wild foxes reduces the chance of conflict.
How long do gray foxes live?
Wild lifespan varies with habitat, predators, disease, hunting, and other pressures. A single simple lifespan figure does not describe every wild population accurately.
Are gray foxes endangered?
The gray fox has a broad geographic distribution and is not listed as an endangered species across its full range. Conservation status can differ for local populations and regional management units.
Why is the gray fox different from the red fox?
The gray fox has shorter legs, a more compact body, and a gray coat with a black dorsal stripe. The red fox is generally taller and has a different body shape and coat pattern.
Is the gray fox related to dogs?
Yes. Gray foxes belong to the family Canidae, the same family that contains domestic dogs, wolves, coyotes, and other foxes.
What does the scientific name Urocyon cinereoargenteus mean?
The species name refers to its grayish-silver appearance. The genus Urocyon is associated with gray foxes and the closely related island fox.
What is unusual about the gray fox's claws?
The claws are semi-retractable and strongly curved. This structure helps the fox grip tree trunks and is one of the physical features that separates it from most other members of the dog family.
Where was the gray fox photograph taken?
The photograph used with this article is the Wikimedia Commons file titled “Gray Fox.jpg.” The image page identifies the photograph and provides its licensing information.
Photo source: Wikimedia Commons — Gray Fox.jpg
Sources:
- Animal Diversity Web — Gray Fox
- USDA Forest Service — Common Gray Fox
- National Park Service — Gray Fox
- U.S. Fish & Wildlife Service — Gray Fox
Source: Animal Diversity Web
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