Nevada mammals

Western Small-footed Myotis in Nevada

Myotis ciliolabrum

Native to Nevada S3 Vulnerable 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.

Western small-footed myotis roosting on wood with its dark face mask visibleSmall group of western small-footed myotis roosting under a beamWestern small-footed myotis hanging against a pale roost surfaceWestern small-footed myotis showing small feet and folded dark wingsClose view of a western small-footed myotis face and dark ears in a narrow roost
Photo: Colin Croft · CC BYWestern small-footed myotis roosting on wood with its dark face mask visiblePhoto: Colin Croft · CC BYSmall group of western small-footed myotis roosting under a beamPhoto: Colin Croft · CC BYWestern small-footed myotis hanging against a pale roost surfacePhoto: Colin Croft · CC BYWestern small-footed myotis showing small feet and folded dark wingsPhoto: Colin Croft · CC BYClose view of a western small-footed myotis face and dark ears in a narrow roost

Western Small-footed Myotis in Nevada, by the numbers

Rare in Nevada 118th most recorded of 142 mammals logged in Nevada

157 occurrence records
4 with iNaturalist photos
Jun 2, 2023 Last seen in Nevada

Records from 2000–2026.

When to look for the Western Small-footed Myotis in Nevada

Most sightings fall in June to July.

157 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
February6
March3
April3
May5
June54
July60
August4
September0
October1
November12
December8

Monthly western small-footed myotis occurrence records (iNaturalist and GBIF) in Nevada, 2000–2026.

Seasonality

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

Occurrence map

Where Western Small-footed Myotis has been recorded in Nevada

157 records mapped · zoom and drag to explore

157 Nevada records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Great Basin National Park 6
Basin and Range National Monument 4
Alta Toquima Wilderness 2
Death Valley National Park 2
Mt. Moriah Wilderness 1

Protected places with the most western small-footed myotis 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
Nye County 36
Lyon County 20
Elko County 18
Mineral County 17
Washoe County 17
White Pine County 13
Esmeralda County 9
Churchill County 7
Lincoln County 6
Lander County 6
Storey County 3
Clark County 3
2 other counties 2

The complete county distribution, spread across 14 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 western small footed myotis have a limited set of named hotspots, led by Great Basin National Park. That gap may reflect where people look and report, so it doesn’t prove absence elsewhere.

These sites tie the Nevada record pattern to the state’s long mountain spine. Records from separate ranges matter because Nevada’s high country is broken into isolated peaks. 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 4 research-grade iNaturalist records and 156 GBIF records. Those 160 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.

Western small-footed myotis roosting on wood with its dark face mask visible
Full species profile Western Small-footed Myotis Myotis ciliolabrum Size 8–10 cm3.1–3.9 in Weight 4–5 g0.1–0.2 oz Lifespan 12 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"