Nevada mammals

Long-tailed Weasel in Nevada

Neogale frenata

Native to Nevada S5 Secure in Nevada

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

IUCN Red List status

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

LC – Least Concern

Widespread and abundant; not at risk.

Long-tailed weasel standing alert in grass with its black-tipped tail curled behind it, Sonoma County, CaliforniaLong-tailed weasel pausing at the edge of a paved trail beside tall grass, San Francisco, CaliforniaLong-tailed weasel peering over a log, showing its cream underside and brown crown, VermontLong-tailed weasel with a bridled black-and-white facial mask peering through a gap in deck boards, TexasLong-tailed weasel standing alert among limestone rocks, New Mexico
Photo: benjchristensen · CC BY 4.0Long-tailed weasel standing alert in grass with its black-tipped tail curled behind it, Sonoma County, CaliforniaPhoto: Jay Paroline · CC BY 4.0Long-tailed weasel pausing at the edge of a paved trail beside tall grass, San Francisco, CaliforniaPhoto: Bernie Paquette · CC BY 4.0Long-tailed weasel peering over a log, showing its cream underside and brown crown, VermontPhoto: johnyochum · CC BY 4.0Long-tailed weasel with a bridled black-and-white facial mask peering through a gap in deck boards, TexasPhoto: Bob Nieman · CC BY 4.0Long-tailed weasel standing alert among limestone rocks, New Mexico

Long-tailed Weasel in Nevada, by the numbers

Occasional in Nevada 75th most recorded of 142 mammals logged in Nevada

92 occurrence records
38 with iNaturalist photos
Jul 2, 2026 Last seen in Nevada

Records from 2000–2026.

92 total records count every Nevada occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 91; the monthly chart covers the 91 records with a full observation date.

When to look for the Long-tailed Weasel in Nevada

Most sightings fall in June to July.

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

Monthly Nevada records (table)
MonthRecords
January1
February2
March1
April2
May9
June31
July19
August14
September6
October1
November2
December3

Monthly long-tailed weasel occurrence records (iNaturalist and GBIF) in Nevada, 2000–2026.

Seasonality

Year-round in Nevada, with recorded sightings peaking in June–July.

Occurrence map

Where Long-tailed Weasel has been recorded in Nevada

91 records mapped · zoom and drag to explore

91 Nevada records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Toiyabe National Forest 12
Humboldt National Forest 2
Highland Ridge Wilderness Area 1
Alta Toquima Wilderness 1
Pine Forest Range Wilderness Area 1
Boundary Peak Wilderness 1
Franklin Lake Wildlife Management Area 1
Steptoe Valley Wildlife Management Area 1

Protected places with the most long-tailed weasel sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in Nevada

CountyRecords
Washoe County 22
White Pine County 18
Elko County 14
Humboldt County 7
Churchill County 7
Nye County 5
Douglas County 5
Lander County 4
Lincoln County 3
Mineral County 2
Esmeralda County 2
Lyon County 1
Carson City County 1
Other localities 1

The complete county distribution, spread across 13 Nevada counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Nevada records for the long tailed weasel are anchored by Pahranagat National Wildlife Refuge and Humboldt-Toiyabe National Forest. They show where people have reported it, not how many animals live there.

The Nevada records bridge the state’s southern desert country and its higher central or northern ranges. That broad spread matters more than any single hotspot. The strongest reporting falls in summer, when Nevada’s high country is easiest to reach but low deserts are hottest. That may shape where observers submit records.

The file combines 37 research-grade iNaturalist records and 49 GBIF records. Those 86 records measure documented encounters, not Nevada’s population size. It’s native to Nevada. Nevada doesn’t specifically list it under the state’s conservation framework, and the IUCN lists it as Least Concern.

Occurrence data from iNaturalist and GBIF.

Long-tailed weasel standing alert in grass with its black-tipped tail curled behind it, Sonoma County, California
Full species profile Long-tailed Weasel Neogale frenata Size 24.8 cm9.8 in Weight 170 g6 oz Lifespan Up to 8.8 yr View the full profile

More mammals in Nevada 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
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"