Grey fox, Tree fox, Common grey fox, Common gray fox
The gray fox (Urocyon cinereoargenteus ), or grey fox, is an omnivorous mammal of the family Canidae, widespread throughout North America and Central America. This species and its only congener, the diminutive island fox (Urocyon littoralis ) of the California Channel Islands, are the only living members of the genus Urocyon, which is considered to be genetically basal to all other living canids. Its species name cinereoargenteus means "ashen silver".
It was once the most common fox in the eastern United States, and though still found there, human advancement and deforestation allowed the red fox to become the predominant fox-like canid. Despite this post-colonial competition, the gray fox has been able to thrive in urban and suburban environments. One of the best examples being southern Florida. The Pacific States and Great Lakes region still have the gray fox as their prevalent fox.
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NocturnalNocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal",...
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CrepuscularCrepuscular animals are those that are active primarily during twilight (that is, the periods of dawn and dusk). This is distinguished from diurnal...
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OmnivoreAn omnivore is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and ani...
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CarnivoreA carnivore meaning 'meat eater' is an organism that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of a...
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FrugivoreA frugivore is an animal that thrives mostly on raw fruits or succulent fruit-like produce of plants such as roots, shoots, nuts, and seeds. Approx...
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GranivoreSeed predation, often referred to as granivory, is a type of plant-animal interaction in which granivores (seed predators) feed on the seeds of pla...
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HerbivoreA herbivore is an animal anatomically and physiologically adapted to eating plant material, for example, foliage, for the main component of its die...
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InsectivoresAn insectivore is a carnivorous plant or animal that eats insects. An alternative term is entomophage, which also refers to the human practice of e...
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ScavengerScavengers are animals that consume dead organisms that have died from causes other than predation or have been killed by other predators. While sc...
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
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TorporTorpor is a state of decreased physiological activity in an animal, usually marked by a reduced body temperature and metabolic rate. Torpor enables...
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NomadicNomadic animals regularly move to and from the same areas within a well-defined range. Most animals travel in groups in search of better territorie...
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ScansorialScansorial animals are those that are adapted to or specialized for climbing. Many animals climb not only in tress but also in other habitats, such...
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TerritorialA territory is a sociographical area that which an animal consistently defends against the conspecific competition (or, occasionally, against anima...
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ViviparousAmong animals, viviparity is the development of the embryo inside the body of the parent. The term 'viviparity' and its adjective form 'viviparous'...
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ArborealArboreal locomotion is the locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some anima...
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BurrowingA burrow is a hole or tunnel excavated into the ground by an animal to create a space suitable for habitation, temporary refuge, or as a byproduct ...
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MonogamyMonogamy is a form of relationship in which both the male and the female has only one partner. This pair may cohabitate in an area or territory for...
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starts withGray foxes are canids (dogs) of medium size with long bodies and fairly short legs. Individuals living at high elevations compared to those at low elevations are slightly larger, and males are also slightly larger and more robust than females, and have a longer pelvis. When born, the fur of gray foxes is dark brown. As adults, their fur is a mix of white, red, gray and black. Their tail is about one-third of their body length, with a distinct black stripe on the top and a tip of black, the rest being gray, and the top of its head, its back and sides are gray. Its chest, belly, sides of the face and legs are reddish brown, while the muzzle, cheeks, and throat are white. The pupils are oval-shaped. Around the eyes is a thin black stripe which runs horizontally from the outer corner of the eye. A thicker black stripe runs from the inner corner of the eye to the mouth.
The Gray fox inhabits most parts of the southern part of North America, from the south of Canada to Venezuela and Colombia in the north of South America. They prefer deciduous forests which incorporate brushy, woodland areas. Many of them live where farmlands and woodlands meet. They prefer to be close to water.
For most of the year, Gray foxes remain solitary. They will spend time socializing with their mate and their offspring in the period after the kits are born. Primarily nocturnal, they have been occasionally observed during daytime. They make their dens in caves, rocky crevices, trees and hollow logs. Gray foxes will sometimes extend a woodchuck burrow for their den. They usually use dens only during mating season and for raising young. As with other members of the Canidae family, these foxes can communicate through barking and growling. Young foxes commonly play fight. Adults mark food sources and territories with their scent.
Gray foxes are omnivorous and mostly eat small mammals such as voles, mice and eastern cottontail rabbits. They also eat birds and insects, as well as plants like corn, apples, berries, nuts and grass. In summer and autumn, crickets and grasshoppers form an important part of the diet.
Gray foxes are typically monogamous, which means they mate with only one partner in a breeding season. In the fall, male-female pairs form, and breeding takes place in the winter, starting in January until late February, and continuing into March. The gestation period is about 53 days, and the young are born in April-May. Litters usually number 4 or 5 kits. Adults males do the majority of the hunting before the births take place, while females seek out and prepare a den. Weaning starts when kits are about 2 to 3 weeks old, and they begin eating solid food at around 3 weeks old, primarily being provided by the father. The parents teach their young how to hunt when they are about 4 months old, both parents, until then, hunting for food separately. Kits practice hunting skills by stalking and pouncing, primarily taught by their father. They depend on their parents to protect them until they are about 10 months old. By then they are sexually mature and will leave the family.
Habitat loss, degradation and fragmentation are the main threats the gray fox faces, as a result of human numbers increasing rapidly. Important habitat has been converted for industrial, agricultural, and urban use. Gray foxes are often sold illegally in Mexico as pets.
The IUCN Red List and other sources don’t provide the number of the Gray fox total population size. Currently this species is classified as Least Concern (LC) on the IUCN Red List and its numbers today remain stable.
Gray foxes, within their ecosystem, play a small but an important role. They influence small rodent populations through their feeding habits, through a steady predator-prey relationship.
