California mammals

Spotted Bat in California

Euderma maculatum

Native to California S3 Vulnerable in California

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

Spotted bat facing forward with huge pale ears and white shoulder patchesLive spotted bat hanging upside down, huge pale ear and black fur with white shoulder spots visible
Photo: Bruce D. Taubert, Bat Conservation International · Public domainSpotted bat facing forward with huge pale ears and white shoulder patchesPhoto: Paul Cryan, U.S. Geological Survey · Public domainLive spotted bat hanging upside down, huge pale ear and black fur with white shoulder spots visible

Spotted Bat in California, by the numbers

Rare in California 224th most recorded of 241 mammals logged in California

14 occurrence records
5 with iNaturalist photos

Records from 2000–2026.

When to look for the Spotted Bat in California

Most sightings fall in May.

14 California occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence. Based on a small number of dated records; the seasonal pattern may not be representative.

Monthly California records (table)
MonthRecords
January2
February0
March0
April0
May3
June1
July1
August3
September1
October2
November1
December0

Monthly spotted bat occurrence records (iNaturalist and GBIF) in California, 2000–2026.

Seasonality

Year-round in California, with recorded sightings peaking in May, with a smaller rise in August and October.

Occurrence map

Where Spotted Bat has been recorded in California

14 records mapped · zoom and drag to explore

14 California records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Yosemite National Park 3
Kings Canyon National Park 1

Protected places with the most spotted bat 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 California

CountyRecords
Inyo County 4
Kern County 2
San Bernardino County 2
Mariposa County 2
Tuolumne County 1
Tulare County 1
Riverside County 1
San Diego County 1

The complete county distribution, spread across 8 California counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

California’s combined state files contain 18 Spotted Bat records: 5 from iNaturalist and 13 from GBIF. It ranks 224th among 243 mammals in this California record comparison, placing it in the lower third. That’s a ranking of submitted records, not a head count of animals.

The monthly series reaches its high point in May, July, September and October, with 1 record in the busiest months. Records appear in 4 of 12 months, so the pattern shows when sightings were documented, not when the species must be present or absent.

California accounts for about 4% of the mapped GBIF records summarized on the national Spotted Bat page. That’s a small share of the known record footprint, though differences in survey effort can strongly shape the percentage.

Occurrence data from iNaturalist and GBIF.

Spotted bat facing forward with huge pale ears and white shoulder patches
Full species profile Spotted Bat Euderma maculatum Size 12.6 cm5 in Weight 16–20 g0.6–0.7 oz View the full profile

More mammals in California 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"