

Defenders of Wildlife
1101 Fourteenth St.
Suite 1400
Washington, DC 20005-5605
Tel: 202-682-9400
Fax: 202-682-1331
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In the United States, the swift fox has "candidate"
status under the Endangered Species Act (ESA). In Canada, they are considered to
be "endangered" by the Committee on the Status of Endangered Wildlife
in Canada (COSEWIC).
Swift foxes have dark buffy gray coloration extending to a
yellow-tan color across their sides and legs. The throat, chest and belly are
pale yellow to white. They have a black-tipped tail, black patches on their
muzzles and noticeably large ears.
The swift fox, along with the kit fox, is the smallest canid
in North America. Weighing approximately 5 pounds, they are about 12 inches in
height and 31 inches in length. Males are larger than females.
The swift fox has been wiped out of 90% of its historic range
in the U.S. Estimates suggest that there may be about 300 foxes in Canada.
Little is known about how long swift foxes live in the wild.
The oldest known wild fox has been 9 years old. In captivity they have been
known to live until the age of 14.
The swift fox is native to the prairies of the Great Plains
region of North America. Historically, their range included grassland prairies
in central North America, extending north to central Alberta, Canada, and south
to central Texas, east through western Iowa and Minnesota and west through New
Mexico, Colorado, Wyoming and Montana. Today the swift fox can be found in
fragmented, smaller populations in portions of Montana, South Dakota, Wyoming,
Nebraska, Colorado, Kansas, Oklahoma, New Mexico, Texas, and they are being
reintroduced into parts of Saskatchewan, Canada.
Swift foxes prefer open rolling grasslands with little or no
shrubs.
They feed on a variety of food sources, including small
mammals, birds, reptiles, amphibians, insects, berries and seeds.
Swift foxes are nocturnal, vocal and
nonterritorial. Although they are social animals, they keep one mate throughout
their lifetime. They received the name "swift fox" because of their
speediness.
Swift foxes breed from December to February. The gestation
period is approximately 51 days. Litter sizes average from 4 to 5 kits who begin
dispersing in September.
One of the main threats to the swift fox is habitat loss as a
result of conversion of grasslands for agriculture. They also are threatened by
trapping and incidental poisoning by bait intended for wolves and coyotes. As
part of federal eradication campaigns, poisoning also has reduced swift fox food
sources, such as prairie dogs and ground squirrels.
The swift fox is a candidate 1 species under the Endangered
Species Act (ESA). Candidate species are animals and plants which may warrant
official listing as threatened or endangered, but there is no conclusive data to
give them this protection at the present time. However, even though they have no
legal protection, in the spirit of the ESA, they are recognized as having
significant value and being worthy of protection.
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