Wyoming mammals

Black-footed Ferret in Wyoming

Mustela nigripes

Native to Wyoming S1 Critically Imperiled in Wyoming

Not listed as nonindigenous in Wyoming by USGS NAS; native to its Wyoming range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

EN – Endangered

Very high risk of extinction in the wild.

Black-footed Ferret in Wyoming, by the numbers

Occasional in Wyoming 68th most recorded of 126 mammals logged in Wyoming

46 occurrence records

Records from 2000–2026.

46 total records count every Wyoming occurrence from GBIF and iNaturalist; the monthly chart covers the 44 records with a full observation date.

When to look for the Black-footed Ferret in Wyoming

Most sightings fall in June.

44 Wyoming occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly Wyoming records (table)
MonthRecords
January4
February2
March3
April2
May2
June10
July0
August8
September5
October5
November1
December2

Monthly black-footed ferret occurrence records (iNaturalist and GBIF) in Wyoming, 2000–2026.

Seasonality

Year-round in Wyoming, with recorded sightings peaking in June, with a smaller rise in August.

Occurrence map

Where Black-footed Ferret has been recorded in Wyoming

46 records mapped · zoom and drag to explore

46 Wyoming records mapped

Where it's recorded in Wyoming

CountyRecords
Park County 18
Albany County 14
Carbon County 4
Uinta County 3
Fremont County 2
Converse County 2
Crook County 1
Sweetwater County 1
Sheridan County 1

The complete county distribution, spread across 9 Wyoming counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Wyoming is the black-footed ferret’s comeback state, and the record still carries the story. Park County, in the northwest, leads the state in reports. It was near Meeteetse, in that county, that a ranch dog’s 1981 find revealed the last known wild ferrets and pulled the species back from presumed extinction. Albany County in the southeast adds the next-largest share, marking prairie dog country where recovery work has focused.

Everything about this ferret ties to prairie dogs. It hunts them, lives in their burrows, and can’t persist where their towns are plowed or poisoned out. So Wyoming’s records read as a map of remaining prairie dog colonies as much as of ferrets, and the gaps say as much about lost grassland as about survey effort.

Reports run all year, with a peak in June and a smaller rise in August. Summer is when kits leave the natal burrow and when spotlight surveys work the colonies, so the calendar mixes real activity with search effort. The IUCN lists the species as Endangered, and NatureServe ranks it critically imperiled in Wyoming. Every confirmed record here carries weight in one of the hardest-won recovery stories in American wildlife.

Occurrence data from GBIF.

More mammals in Wyoming in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries