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American Badger


The American badger (Taxidea taxus) is a North American badger, somewhat similar in appearance to the European badger. It is found in the western and central United States, northern Mexico, and south-central Canada to certain areas of southwestern British Columbia.

American badger habitat is typefied by open grasslands with available prey (such as mice, squirrels, and groundhogs). The species prefers areas with sandy loam soils where it can dig more easily for its prey, such as prairie regions.

==TTaxomoneaxonomy [edit]==

Recognized subspecies include: the nominate subspecies T. t. taxus, found in central Canada and central US; T. t. jacksoni, found in the southern Great Lakes region including southern Ontario; T. t. jeffersoni, in British Columbia and the western US; and T. t. berlandieri, in the southwestern US and northern Mexico.[3][4] Ranges of subspecies overlap considerably, with intermediate forms occurring in the areas of overlap.

In Mexico, this animal is sometimes called tlalcoyote. The Spanish word for badger is tejón, but in Mexico this word is also used to describe the coati. This can lead to confusion, as both coatis and badgers are found in Mexico.


[1][2]American badger

The American badger has most of the general characteristics common to badgers; with stocky and low-slung bodies with short, powerful legs, they are identifiable by their huge foreclaws (measuring up to 5 cm in length) and distinctive head markings. Measuring generally between 60 to 75 cm (23.6 to 29.5 inches) in length, males of the species are slightly larger than females (with an average weight of roughly 7 kg (15.5 pounds) for females and up to almost 9 kg (19.8 pounds) for males). Northern subspecies such as T. t. jeffersonii are heavier than the southern subspecies. In the fall, when food is plentiful, adult male badgers can exceed 11.5 kg (25.3 pounds).[5]

Except for the head, the American badger is covered with a grizzled, silvery coat of coarse hair or fur. Its triangular face shows a distinctive black and white pattern, with brown or blackish "badges" marking the cheeks and a white stripe extending from the nose to the base of the head. In the subspecies T. t. berlandieri, the white head stripe extends the full length of the body, to the base of the tail.[6]



The American badger is a fossorial carnivore. It preys predominantly on pocket gophers (Geomyidae), ground squirrels (Spermophilus), moles (Talpidae), marmots (Marmota), prairie dogs (Cynomys), pika(Ochotona), woodrats (Neotoma), kangaroo rats (Dipodomys), deer mice (Peromyscus), and voles (Microtus), often digging to pursue prey into their dens, and sometimes plugging tunnel entrances with objects.[7] They also prey on ground-nesting birds, such as the bank swallow or sand martin (Riparia riparia) and burrowing owl (Athene cunicularia), and lizardsamphibianscarrion, fish, skunks (Mephitis and Spilogale), insects, including bees and honeycomb, and some plant foods such ascorn (Zea mais), peas, green beans, mushrooms and other fungi, and sunflower seeds (Helianthus).[4]


American badgers are largely nocturnal, but have been reported to be active during the day as well. They do not hibernate, but become less active in winter. A badger may spend much of the winter in cycles of torpor that last around 29 hours. They do emerge from their setts when the temperature is above freezing.[4]

Badgers sometimes use abandoned burrows of other animals such as foxes or animals similar in size. They will sometimes form a mutually beneficial relationship with coyotes. Because coyotes are not very effective at digging rodents out of their burrows, they will chase the animals while they are above ground. Badgers, in contrast, are not fast runners, but are well adapted to digging. When hunting together, the two animals effectively leave little escape for prey in the area.[8]

Life cycle[edit][]

Badgers are normally solitary animals for most of the year, but are thought to expand their territories in the breeding season to seek out mates. Males may breed with more than one female. Mating occurs in late summer and early fall. American badgers experience delayed implantation. Pregnancies are suspended until December or as late as February. Young are born from late March to early April.[4] Litters range from one to five young,[9] averaging about three.[10]

Badgers are born blind, furred, and helpless.[4] Eyes open at four to six weeks. The female feeds her young solid foods prior to complete weaning, and for a few weeks thereafter.[10] Young American badgers first emerge from the den on their own at five to six weeks old.[9][11] Families usually break up and juveniles disperse from the end of June to August; young American badgers leave their mothers as early as late May or June.[11] Juvenile dispersal movements are erratic.[9]

[5][6]American badger at Omaha's Henry Doorly Zoo

Most female American badgers become pregnant for the first time after they are a year old. A minority of females four to five months old ovulate and a few become pregnant. Males usually do not breed until their second year.[4]

Major causes of adult American badger mortality include, in order, automobiles, farmers (by various methods), sport shooting, and fur trapping. Large predators occasionally kill American badgers.[9] Yearly mortality has been estimated at 35% for populations in equilibrium. The average longevity in the wild is 9–10 years and the record is 14 years;[12] a captive American badger lived at least 15 years and five months.[9]


American badgers occur primarily in grasslands, parklands, farms, and other treeless areas with friable soil and a supply of rodent prey.[13][14] They are also found in forest glades and meadows, marshes, brushy areas, hot deserts, and mountain meadows. They are sometimes found at elevations up to 12,000 feet (3,600 m) but are usually found in the Sonoran and Transition life zones (which are at elevations lower and warmer than those characterized by coniferous forests).[10] In Arizona, they occur in desert scrub and semidesert grasslands.[15] In California, American badgers are occasionally found in open chaparral (with less than 50% plant cover) and riparian zones. They are not usually found in mature chaparral.[16] In Manitoba aspen parklands, American badger abundance was positively associated with the abundance of Richardson's ground squirrels (Spermophilus richardsonii).[17]

American badger use of home range varies with season and sex. Different areas of the home range are used more frequently at different seasons and usually are related to prey availability. Males generally have larger home ranges than females. Radiotransmitter-tagged American badgers had an average annual home range of 2,100 acres (850 ha). The home range of one female was 1,790 acres (725 ha) in summer, 131 acres (53 ha) in fall, and 5 acres (2 ha) in winter.[18] Lindzey reported average home ranges of 667 to 1,550 acres (270–627 ha).[19]

Estimated density of American badgers in Utah scrub-steppe was one per square mile (2.6 km2), or 10 dens per square mile (assuming a single American badger has 10 dens in current or recent use).[4]

The American badger in Ontario,is restricted primarily to the extreme southwestern portion of the province – largely along the north shore of Lake Erie in open areas generally associated with agriculture and woodland edges. There have been a few reports from the Bruce-Grey region. Additionally, although not recently, there have been reports from the southwestern portion of the province, adjacent to the Minnesota border.[20]

Plant communities[edit][]

American badgers are most commonly found in treeless areas, including tallgrass and shortgrass prairies, grass-dominated meadows and fields within forested habitats, and shrub-steppe communities. In the Southwest, plant indicators of the Sonoran and Transition life zones (relatively low, dry elevations) commonly associated with American badgers include creosotebush (Larrea tridentata), junipers (Juniperus spp.), gambel oak (Quercus gambelii), willows (Salix spp.), cottonwoods (Populus spp.), ponderosa pine (Pinus ponderosa), grasses, and sagebrushes (Artemisia spp.).[10]

In Colorado, American badgers are common in grass–forb and ponderosa pine habitats.[21] In Kansas, they are common in tallgrass prairie dominated by big bluestem (Andropogon gerardii), little bluestem (Schizachyrium scoparium), and Indian grass (Sorghastrum nutans).[22] In Montana, these badgers are present in Glacier National Park in fescue (Festuca spp.) grasslands.[23] In Manitoba, they occur in grassland extensions within aspen (Populus spp.) parklands.[17]

Cover requirements[edit][]

American badgers enlarge hunting burrows for concealment, protection from weather, and natal dens; burrows are up to 30 feet (10 m) long and 10 feet (3 m) deep. Large mounds of soil are built up at burrow entrances.[13] During the summer, they usually use a new den each day; holes are usually excavated at least a few days before being used as a den. An average of 0.64 dens were in use (signified by an open hole) per acre (1.6/ha) in northern Utah scrub steppe.[19] Where prey is particularly plentiful, they will reuse dens,[10] especially in the fall, sometimes for a few days at a time. In winter, a single den may be used for most of the season.[4] Natal dens are dug by the female and are used for extended periods, but litters are often moved several times, probably to allow the mother to forage in new areas close to the nursery. Natal dens are usually larger and more complex than diurnal dens.[9]


The American badger is an aggressive animal and has few natural enemies. Predation on smaller individuals by golden eagles (Aquila chrysaetos), coyotes,[4] cougars (Felis concolor), and bobcats (Lynx rufus) have been reported.[24] Bears (Ursusspp.) and gray wolves (Canis lupus) occasionally kill American badgers.[9]

Conservation status[edit][]

In May 2000, the Canadian Species at Risk Act listed both the Taxidea taxus jacksoni and the T. t. jeffersonii subspecies as an endangered species in Canada.[25] The California Department of Fish and Game designated the American badger as a California species of special concern.[26]