Oregon mammals

Long-legged Myotis in Oregon

Myotis volans

Native to Oregon S3 Vulnerable in Oregon

Not listed as nonindigenous in Oregon by USGS NAS; native to its Oregon 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-legged Myotis in Oregon, by the numbers

Rare in Oregon 152nd most recorded of 178 mammals logged in Oregon

187 occurrence records
4 with iNaturalist photos
Aug 24, 2023 Last seen in Oregon

Records from 2000–2026.

When to look for the Long-legged Myotis in Oregon

Most sightings fall in August.

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

Monthly Oregon records (table)
MonthRecords
January0
February3
March0
April2
May0
June7
July29
August129
September16
October0
November0
December1

Monthly long-legged myotis occurrence records (iNaturalist and GBIF) in Oregon, 2000–2026.

Seasonality

Year-round in Oregon, with recorded sightings peaking in August.

Occurrence map

Where Long-legged Myotis has been recorded in Oregon

187 records mapped · zoom and drag to explore

187 Oregon records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Mt. Hood National Forest 7
Malheur National Forest 3
Oregon Caves National Monument and Preserve 3
Oregon Islands National Wildlife Refuge Wilderness Area 1
Newberry National Volcanic Monument 1

Protected places with the most long-legged 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 Oregon

CountyRecords
Wallowa County 81
Jefferson County 23
Union County 16
Jackson County 9
Grant County 9
Wasco County 7
Lincoln County 7
Clackamas County 6
Clatsop County 6
Harney County 4
Lake County 3
Deschutes County 3
7 other counties 13

The complete county distribution, spread across 19 Oregon counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Oregon’s occurrence data holds 187 long-legged myotis records, one of the larger counts among the state’s bats, though nearly all of them come from GBIF specimen and survey data rather than casual sightings. Reports concentrate along the Columbia River Gorge, with additional records from Willamette Valley river corridors and regional parks.

Basalt cliffs and conifer edges

Long-legged myotis is a mountain forest bat, recorded most heavily between 5,200 and 7,900 feet in coniferous forest, mixed conifer, and streamside corridors elsewhere in its range. The Columbia River Gorge supplies that same combination close to home: basalt cliff faces, waterfalls, and dense conifer forest stacked along a river corridor. Willamette Valley sightings likely reflect the same bat foraging low over open water rather than describing its usual mountain-forest habitat.

One month holds most of the record

Well over half of Oregon’s records, 129 of 187, land in August alone. That’s a striking concentration, but it lines up with only four coming from iNaturalist against 184 from GBIF, meaning most of Oregon’s data traces back to structured bat surveys rather than casual observers. The August spike likely marks when that survey effort was in the field, not a real jump in the bat’s activity that month.

NatureServe ranks the long-legged myotis S3, Vulnerable, in Oregon, against a G4 status globally, and the species is treated as native to its Oregon range.

Occurrence data from iNaturalist and GBIF.

More mammals in Oregon 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"