New Mexico mammals

Allen's Big-eared Bat in New Mexico

Idionycteris phyllotis

Native to New Mexico S3 Vulnerable 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.

Allen's Big-eared Bat in New Mexico, by the numbers

Rare in New Mexico 155th most recorded of 176 mammals logged in New Mexico

73 occurrence records
4 with iNaturalist photos
Jul 1, 2023 Last seen in New Mexico

Records from 2000–2026.

When to look for the Allen's Big-eared Bat in New Mexico

Most sightings fall in July.

73 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
January1
February1
March0
April2
May1
June21
July39
August3
September3
October2
November0
December0

Monthly allen's big-eared bat occurrence records (iNaturalist and GBIF) in New Mexico, 2000–2026.

Seasonality

Year-round in New Mexico, with recorded sightings peaking in July.

Occurrence map

Where Allen's Big-eared Bat has been recorded in New Mexico

73 records mapped · zoom and drag to explore

73 New Mexico records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
State Trust Land 1

Protected places with the most allen's big-eared 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 New Mexico

CountyRecords
Catron County 55
Socorro County 13
Sierra County 4
Otero County 1

The complete county distribution, spread across 4 New Mexico counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Allen’s big-eared bat is a rock-crevice specialist of the rugged Southwest, and its New Mexico records match that pattern: Gila National Forest, the Mogollon Mountains, and the Blue Range Wilderness are all steep, canyon-cut country with the cliffs and rock faces this bat roosts in.

The state’s 73 records lean almost entirely on GBIF data (71 of 73), with only 4 through iNaturalist, a sign of how hard this bat is to document by camera or casual sighting. Records cluster hard in June and July, with 21 and 39 reports respectively, more likely reflecting summer bat-survey effort in the Gila than a true seasonal spike in the animal’s own activity.

NatureServe ranks the species S3, Vulnerable, in New Mexico, a real conservation flag distinct from its more secure global status. That state-level concern is worth taking seriously given how rarely observers document this solitary, nocturnal bat at all.

Occurrence data from iNaturalist and GBIF.

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"