New Mexico mammals

Long-tailed Weasel in New Mexico

Neogale frenata

Native to New Mexico S4 Apparently Secure in New Mexico

Not listed as nonindigenous in New Mexico by USGS NAS; native to its New Mexico 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 in New Mexico, by the numbers

Occasional in New Mexico 104th most recorded of 176 mammals logged in New Mexico

249 occurrence records
74 with iNaturalist photos
Jul 6, 2026 Last seen in New Mexico

Records from 2000–2026.

249 total records count every New Mexico occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 247; the monthly chart covers the 244 records with a full observation date.

When to look for the Long-tailed Weasel in New Mexico

Most sightings fall in June to August.

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

Monthly New Mexico records (table)
MonthRecords
January25
February17
March34
April9
May9
June36
July31
August24
September14
October6
November24
December15

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

Seasonality

Year-round in New Mexico, with recorded sightings peaking in June–August, with a smaller rise in November and January.

Occurrence map

Where Long-tailed Weasel has been recorded in New Mexico

247 records mapped · zoom and drag to explore

247 New Mexico records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Rio Grande Valley State Park 4
Valles Caldera National Preserve 3
Rio Grande corridor 2
State Trust Land 2
Cibola National Forest 2
Sandia Mountain Wilderness 2
Pecos Wilderness 2
Living Desert State Park 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 New Mexico

CountyRecords
Eddy County 70
Bernalillo County 33
Socorro County 19
Santa Fe County 16
Sandoval County 16
Chaves County 16
Taos County 12
Colfax County 9
Torrance County 8
Rio Arriba County 7
Doña Ana County 6
San Miguel County 5
15 other counties 32

The complete county distribution, spread across 27 New Mexico counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Long-tailed weasels turn up across a wide slice of New Mexico, from the Bosque del Apache and Sevilleta wildlife refuges along the Rio Grande to the pine country of Cibola and Santa Fe national forests. That spread fits a hunter that follows rodent prey through nearly any habitat with enough cover, wetland to alpine.

Reports rise through late spring and peak in July, when young weasels are out of the den and more likely to be seen by day. New Mexico’s NatureServe rank for the species is S4, Apparently Secure. Its records, spread thinly across refuges, forests, and the river corridor rather than piling up in one place, suggest a weasel that’s simply hard to spot rather than genuinely scarce.

Occurrence data from iNaturalist.

More mammals in New Mexico 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"