American badger

North american badger speciesTemplate:SHORTDESC:North american badger species

The **American badger** (*Taxidea taxus*) is a North American badger similar in appearance to the European badger, although not closely related. It is found in the western, central, and eastern United States, northern Mexico, and south-central Canada to certain areas of southwestern British Columbia.

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

## Taxonomy

The American badger is a member of the Mustelidae, a diverse family of carnivorous mammals that also includes weasels, otters, ferrets, and the wolverine. The American badger belongs to the Taxidiinae, one of four subfamilies of mustelid badgers – the other three being the Melinae (four species in two genera, including the European badger), the Helictidinae (five species of ferret-badgers) and the Mellivorinae (the honey badger); the so-called stink badgers are mephitids. The American badger's closest relative is the prehistoric *Chamitataxus*. Among extant mustelids, the American badger is the most basal species; its lineage is thought to have split off from the rest of the Mustelidae about 18 million years (Ma) ago, following the split of mustelids from procyonids about 29 Ma ago.

The recognized subspecies include:

The ranges of the 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.

## Description

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.

American badgers possess morphological characteristics that enables them to be good fossorial specialists such as a conical head, bristles on the ears and nictitating membranes in the eyes. American badgers have powerful forelimbs. They also possess a strong humerus and large bony processes for the attachment of muscles. The mechanical advantage in badger forelimbs is increased by the specialized olecranon process and bones such as the radius and metacarpals.

Measuring generally between 60 and 75 cm (23.5 and 29.5 in) in length, males of the species are slightly larger than females. They may attain an average weight of roughly 6.3 to 7.2 kg (14 to 16 lb) for females and up to 8.6 kg (19 lb) 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 reach up to 11.5 to 15 kg (25 to 33 lb). In some northern populations, females can average 9.5 kg (21 lb).

Except for the head, the American badger is covered with a grizzled, brown, black and white coat of coarse hair or fur, giving almost a mixed brown-tan appearance. The coat aids in camouflage in grassland habitat. 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.

## Diet

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. The American badger is a significant predator of snakes including rattlesnakes, and is considered the most important predator of rattlesnakes in South Dakota. They also prey on ground-nesting birds, such as the bank swallow or sand martin (*Riparia riparia*) and the burrowing owl (*Athene cunicularia*), lizards, amphibians, carrion, fish, skunks (*Mephitis* and *Spilogale*), insects (including bees and honeycomb), and some plant foods such as corn (*Zea mais*), peas, green beans, mushrooms and other fungi, and sunflower seeds (*Helianthus*).

## Behavior

American badgers are generally nocturnal; however, in remote areas with no human encroachment they are routinely observed foraging during the day. Seasonally, a badger observed during daylight hours in the spring months of late March to early May often represents a female foraging during daylight and spending nights with her young. Badgers do not hibernate but may 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 burrows when the temperature is above freezing.

As a fossorial mammal, the American badger uses a scratch-digging process where the forelimbs are withdrawn to break the soil and move the debris behind or to the sides of its body

An abandoned badger burrow may be occupied by mammals of similar size, such as foxes and skunks, as well as animals as diverse as the burrowing owl, California tiger salamander and California red-legged frog.

The American badger has been seen working with a coyote in tandem while hunting. Typically this pairing is one badger to one coyote, however, one study found about 9% of sightings included two coyotes to one badger, while 1% had one badger to three coyotes. Researchers have found that the coyote benefits by an increased catch rate of about 33%, and while it is difficult to see precisely how the badger benefits, the badger has been noted to spend more time underground and active. Badgers are also thought to expend less energy while hunting in burrows.

According to research, this partnership works due to the different hunting styles of the predators and how their prey reacts to them. A ground squirrel, upon spotting a coyote, will crawl into its hole to escape; while upon seeing a badger, the ground squirrel will climb out of its hole and use its speed to outrun the badger. Hunting in tandem raises the prey vulnerability and both predators win.

## Life cycle

Badgers are normally solitary animals, but are thought to expand their territories in the breeding season to seek out mates. Mating occurs in late summer and early fall, with some males breeding with more than one female. American badgers experience delayed implantation, with pregnancies suspended until December or as late as February. Young are born from late March to early April in litters ranging from one to five young, averaging about three.

Badgers are born blind, furred, and helpless. Eyes open at four to six weeks. The female feeds her young solid foods prior to complete weaning, and for a few weeks thereafter. Young American badgers first emerge from the den on their own at five to six weeks old. 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. Juvenile dispersal movements are erratic.

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.

Large predators occasionally kill American badgers. The average longevity in the wild is 9–10 years, with a record of 14; a captive example lived at least 15 years and five months.

## Habitat

American badgers prefer grasslands and open areas with grasslands, which can include parklands, farms, and treeless areas with friable soil and a supply of rodent prey. They may also be 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 (3,700 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). In Arizona, they occur in desert scrub and semidesert grasslands. In California, American badgers are primarily able to survive through a combination of open grasslands of agricultural lands, protected land trust and open space lands, and regional and state and national park lands with grassland habitat. The Sonoma County badger population includes some protected and private lands near the Sonoma Coast, as well as one in South Sonoma County fragilely surviving in spite of abundant prey due to fragmentation. Badgers are occasionally found in open chaparral (with less than 50% plant cover) and riparian zones. They are not usually found in mature chaparral. In Manitoba aspen parklands, American badger abundance was positively associated with the abundance of Richardson's ground squirrels (*Spermophilus richardsonii*).
In Ontario it primarily resides on the extreme southwestern portion of the province, restricted to the north shore of Lake Erie in open areas generally associated with agriculture and along woodland edges. There have been a few reports from the Bruce-Grey region.

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. In a 1972 study, radiotransmitter-tagged American badgers had an average annual home range of 2,100 acres (850 hectares). The home range of one female was 1,790 acres (720 hectares) in summer, 131 acres (53 hectares) in fall, and 5 acres (2.0 hectares) in winter. Lindzey reported average home ranges of 667 to 1,550 acres (270 to 627 ha). Estimated density of American badgers in Utah scrub-steppe was one per square mile (2.6 km2), with 10 dens in active or recent use.

As of 2014[update], overdevelopment of American badger habitat had resulted in reduced range, decreased prey, and forced badgers into contact with humans when foraging between fragments. Direct observations in Sonoma County, documenting habitat and badger sightings and foraging, reflect various ranges within the fragmented habitat areas from less than 1/2 mile to approximately 4 miles. Within these areas, the availability of prey and a fresh water source are key factors for the preferred habitat areas and ability to survive. Identifying and conserving habitat areas where there is year-round activity, along with identified burrowing patterns and observations of female badger territory for birthing and raising young have become critical factors in survival of the species.

### Plant communities

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.).

In Colorado in 1977, American badgers were common in grass–forb and ponderosa pine habitats. In Kansas, they are common in tallgrass prairie dominated by big bluestem (*Andropogon gerardi*), little bluestem (*Schizachyrium scoparium*), and Indian grass (*Sorghastrum nutans*). In Montana 24 years ago, badgers were present in Glacier National Park in fescue (*Festuca* spp.) grasslands. In Manitoba, they occur in grassland extensions within aspen (*Populus* spp.) parklands.

### Cover requirements

American badgers require cover for sleep, concealment, protection from weather, and natal denning. They typically enlarge foraged out gopher or other prey holes, or other animal burrows. Their dens range from about 4 feet to 10 feet in depth and 4 feet to 6 feet in width. A female American Badger may create 2 to 4 burrows in proximity with a connecting tunnel for concealment and safety for her young. Displaced soil from digging out the burrow characteristically appears in front of the burrow entrance, and a view from a distance reveals a mound-like roof of the burrow, with the living and concealment space created underneath the raised-roof appearing mound.

During summer and autumn, badgers range more frequently, with mating season generally in November, and burrowing patterns reflect 1 to 3 burrows may be dug from foraged out prey holes in a day, used for a day to a week, and then abandoned, with possible returns later, and other small wildlife utilizing abandoned burrows in the interim. Where prey is particularly plentiful, they will reuse dens, 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. Natal dens are dug by the female and are used for extended periods, but litters may be moved, 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.

## Predation

While the American badger is an aggressive animal with few natural enemies, it is still vulnerable to other species in its habitat. Predation on smaller individuals by golden eagles (*Aquila chrysaetos*), coyotes (*Canis latrans*) and bobcats (*Lynx rufus*) have been reported. Bears (*Ursus* spp.) and gray wolves (*Canis lupus*) occasionally kill American badgers, while cougars (*Puma concolor*), according to a 2019 study, apparently are the main predators of adults, hunting them much more frequently than the other carnivorans, with a documented case where the badger is one of the main prey of a collared cat.

American badgers are trapped by humans for their pelts. Their fur is used for shaving and painting brushes.

## Conservation status

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

## Notes

1. ↑ It was formerly classified as part of the genus *Meles* as *Meles labradorica* (Lat. "Labrador badger"), then classified as *Taxidea americana* (Lat. "American taxid" or "badger-like animal")

## References

1. ↑ Helgen, K.; Reid, F. (2016). "*Taxidea taxus*". *IUCN Red List of Threatened Species*. **2016**: e.T41663A45215410. doi:10.2305/IUCN.UK.2016-1.RLTS.T41663A45215410.en .
2. ↑ 2.0 2.1 ( [[#CITEREF|]])
3. ↑ ( [[#CITEREF|]])
4. ↑ Wozencraft, W.C. (2005). "Order Carnivora". In Wilson, D.E.; Reeder, D.M. *Mammal Species of the World: A Taxonomic and Geographic Reference* (3rd ed.). Johns Hopkins University Press. p. 619. ISBN 978-0-8018-8221-0. OCLC 62265494.
5. ↑ Law, C. J.; Slater, G. J.; Mehta, R. S. (January 1, 2018). "Lineage Diversity and Size Disparity in Musteloidea: Testing Patterns of Adaptive Radiation Using Molecular and Fossil-Based Methods". *Systematic Biology*. **67** (1): 127–144. doi:10.1093/sysbio/syx047 . PMID 28472434.
6. ↑ "Taxidea". *funet.fi*. Retrieved August 7, 2007.
7. ↑ 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 Long, Charles A. (1972). "*Taxidea taxus*" (PDF). *Journal of Mammalogy*. **26** (26): 1–4. doi:10.2307/3504047. JSTOR 3504047. Archived from the original (PDF) on July 13, 2007. Retrieved August 7, 2007.
8. ↑ Long, Charles A. (1972). "Taxonomic Revision of the North American Badger, *Taxidea taxus*". *Journal of Mammalogy*. **53** (4): 725–759. doi:10.2307/1379211. JSTOR 1379211.
9. ↑ 9.0 9.1 Moore, Alexis L.; Budny, Joseph E.; Russell, Anthony P.; Butcher, Michael T. (2012). "Architectural specialization of the intrinsic thoracic limb musculature of the American badger (Taxidea taxus)". *Journal of Morphology*. **274** (1): 35–48. doi:10.1002/jmor.20074. PMID 22987341.
10. ↑ Feldhamer, George A.; Bruce Carlyle Thompson; Joseph A. Chapman (2003). *Wild Mammals of North America: Biology, Management, and Conservation*. JHU Press. p. 683. ISBN 0-8018-7416-5.
11. ↑ Lindzey, Fred (1994) "Badgers", Ch. 28 in *The Handbook: Prevention and Control of Wildlife Damage*. University of Nebraska-Lincoln. ISBN 9780961301514
12. ↑ Minta, S. C., Minta, K. A., & Lott, D. F. (1992). "Hunting associations between badgers (*Taxidea taxus*) and coyotes (*Canis latrans*)". *Journal of Mammalogy*. **73** (4): 814–820. doi:10.2307/1382201. JSTOR 1382201. CS1 maint: Multiple names: authors list (link)
13. ↑ Quinn, J. H. (2008). The ecology of the American badger *Taxidea taxus* in California: assessing conservation needs on multiple scales. University of California, Davis.
14. ↑ Harlow, Henry J.; Miller, Brian; Ryder, Thomas; Ryder, Lisa (1985). "Energy requirements for gestation and lactation in a delayed implanter, the American badger". *Comparative Biochemistry and Physiology Part A: Physiology*. **82** (4): 885–889. doi:10.1016/0300-9629(85)90501-8. PMID 14575040.
15. ↑ American Society of Mammalogists Staff; Smithsonian Institution Staff (1999). *The Smithsonian Book of North American Mammals*. UBC Press. p. 179. ISBN 0-7748-0762-8.
16. ↑ Michener, Gail R. (2004). "Hunting techniques and tool use by North American badgers preying on Richardson's ground squirrels". *Journal of Mammalogy*. **85** (5): 1019–1027. doi:10.1644/BNS-102 . JSTOR 1383835.
17. ↑ Klauber, Lawrence Monroe (1997). *Rattlesnakes: Their Habits, Life Histories, and Influence on Mankind*. Volume 1. 2nd ed. Berkeley (California): University of California Press. p. 1076. ISBN 0520210565.
18. ↑ McLendon, Russell (May 7, 2020). "Why coyotes and badgers hunt together". *mnn.com*.
19. ↑ "Do coyotes and badgers work together to find food?". *howstuffworks.com*. January 6, 2009.
20. ↑ "Spotted! A Coyote and Badger Hunting Together". *fws.gov*. November 12, 2016.
21. ↑ 21.0 21.1 21.2 21.3 21.4 21.5 21.6 Lindzey, Frederick G. (1982). "Badger: *Taxidea taxus*", pp. 653–663 in Chapman, Joseph A.; Feldhamer, George A., eds. *Wild mammals of North America: Biology, management, and economics*. Baltimore, MD: The Johns Hopkins University Press. ISBN 0801874165.
22. ↑ 22.0 22.1 22.2 22.3 22.4 Long, Charles A.; Killingley, Carl Arthur. (1983). *The badgers of the world*. Springfield, IL: Charles C. Thomas Publishing
23. ↑ 23.0 23.1 Messick, John P.; Hornocker, Maurice G. (1981). "Ecology of the Badger in Southwestern Idaho". *Wildlife Monographs*. **76** (76): 1–53. JSTOR 3830719.
24. ↑ Lindsey, Frederick G. (1971). *Ecology of badgers in Curlew Valley, Utah and Idaho with emphasis on movement and activity patterns*. Logan, UT: Utah State University
25. ↑ Banfield, A. W. F. (1974). *The mammals of Canada*. Toronto, ON: University of Toronto Press
26. ↑ de Vos, A. (1969). "Ecological conditions affecting the production of wild herbivorous mammals on grasslands", pp. 137–179 in *Advances in ecological research*. On file at U.S. Department of Agriculture, Forest Service, Intermountain Research Station, Fire Sciences Laboratory, Missoula, MT
27. ↑ Davis, Russell; Sidner, Ronnie. (1992). *Mammals of woodland and forest habitats in the Rincon Mountains of Saguaro National Monument, Arizona*. Technical Report NPS/WRUA/NRTR-92/06. Tucson, AZ: The University of Arizona, School of Renewable Natural Resources, Cooperative National Park esources Study Unit
28. ↑ Quinn, Ronald D. (1990). "Habitat preferences and distribution of mammals in California chaparral". Res. Pap. PSW-202. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station
29. ↑ 29.0 29.1 Bird, Ralph D. (1930). "Biotic communities of the aspen parkland of central Canada". *Ecology*. **11** (2): 356–442. doi:10.2307/1930270. JSTOR 1930270.
30. ↑ "Ontario Badgers". ontariobadgers.org.
31. ↑ Sargeant, Alan B.; Warner, Dwain W. (1972). "Movements and denning habits of a badger". *Journal of Mammalogy*. **53** (1): 207–210. doi:10.2307/1378851. JSTOR 1378851.
32. ↑ Lindzey, Frederick G. (1978). "Movement patterns of badgers in northwestern Utah". *Journal of Wildlife Management*. **42** (2): 418–422. doi:10.2307/3800282. JSTOR 3800282.
33. ↑ Morris, Meredith J.; Reid, Vincent H.; Pillmore, Richard E.; Hammer, Mary C. (1977). "Birds and mammals of Manitou Experimental Forest, Colorado". Gen. Tech. Rep. RM-38. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment.
34. ↑ Gibson, David J. (1989). "Effects of animal disturbance on tallgrass prairie vegetation". *American Midland Naturalist*. **121** (1): 144–154. doi:10.2307/2425665. JSTOR 2425665.
35. ↑ Tyser, Robin W. (1990). "Ecology of fescue grasslands in Glacier National Park", pp. 59–60 in Boyce, Mark S.; Plumb, Glenn E. (eds.) *National Park Service Research Center, 14th annual report*. Laramie, WY: University of Wyoming, National Park Service Research Center.
36. ↑ Skinner, Scott (1990). "Earthmover". *Wyoming Wildlife*. **54** (2): 4–9.
37. ↑ Thomas, Pete (September 10, 2019). "This cougar's diet might surprise you". *Usa Today*. https://ftw.usatoday.com/2019/09/what-this-mountain-lion-eats-might-surprise-you.
38. ↑ "Species at Risk Act: List of Wildlife Species at Risk". Archived from the original on April 19, 2013. Retrieved March 14, 2013.
39. ↑ "Mammal Species of Special Concern". dfg.ca.gov. Archived from the original on November 23, 2010. Retrieved November 27, 2010.

## Cited sources

* Baynes, T. S., ed. (1878). "Badger". *Encyclopædia Britannica*. **3** (9th ed.). New York: Charles Scribner's Sons. pp. 227.
* Chisholm, Hugh, ed. (1911). "Badger" (in en). *Encyclopædia Britannica*. **3** (11th ed.). Cambridge University Press. p. 188.

 This article incorporates public domain material from the United States Department of Agriculture document: "Taxidea taxus".
Badgers

## Further reading

* Shefferly, N. 1999. "Taxidea taxus" (On-line), Animal Diversity Web. Accessed April 15, 2007 at University of Michigan Museum of Zoology
* Whitaker, John O. (October 12, 1980). *The Audubon Society Field Guide to North American Mammals*. Alfred A. Knopf. p. 745. ISBN 0-394-50762-2.

## External links

* Ontario Badgers (information about the American badger and the research of their endangered Ontario population)
* Miller, Ira. "Montana Animal Field Guide". Archived from the original on June 30, 2007. Retrieved August 4, 2007.
* Streube, Donald. "American Badger, Idaho Museum of Natural History". Archived from the original on August 4, 2007. Retrieved August 4, 2007.
* "American Badger, The University of Texas at El Paso". *The University of Texas at El Paso*. Archived from the original on June 7, 2007. Retrieved August 4, 2007.
* Steve Jackson's badger page
* Smithsonian Institution – North American Mammals: Taxidea taxus