New Hampshire mammals

Eastern Red Bat in New Hampshire

Lasiurus borealis

Native to New Hampshire S3B Vulnerable in New Hampshire

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

Eastern Red Bat in New Hampshire, by the numbers

Rare in New Hampshire 55th most recorded of 76 mammals logged in New Hampshire

10 occurrence records
8 with iNaturalist photos
May 5, 2026 Last seen in New Hampshire

Records from 2000–2026.

10 total records count every New Hampshire occurrence from GBIF and iNaturalist; the monthly chart covers the 9 records with a full observation date.

When to look for the Eastern Red Bat in New Hampshire

Most sightings fall in September.

9 New Hampshire 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 New Hampshire records (table)
MonthRecords
January0
February0
March0
April0
May1
June1
July0
August1
September4
October1
November1
December0

Monthly eastern red bat occurrence records (iNaturalist and GBIF) in New Hampshire, 2000–2026.

Seasonality

Sparse observation record in New Hampshire; presence confirmed but timing of activity not well documented.

Occurrence map

Where Eastern Red Bat has been recorded in New Hampshire

10 records mapped · zoom and drag to explore

10 New Hampshire records mapped

Where it's recorded in New Hampshire

CountyRecords
Hillsborough County 5
Belknap County 2
Rockingham County 1
Carroll County 1
Grafton County 1

The complete county distribution, spread across 5 New Hampshire counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Eastern red bats are genuinely scarce in New Hampshire’s record, just 10 sightings total, and NatureServe’s S3B breeding rank, vulnerable, sits below the species’ G3 global rank, itself already a globally vulnerable status tied to wind-turbine mortality and white-nose syndrome pressure on the broader bat community. This species roosts alone in foliage rather than in caves, which makes it harder to detect than colonial cave bats and likely helps explain the thin record here.

Nearly half the sightings, 4 of 10, land in September, consistent with the state’s other migratory bats passing through on their way south for the winter; the remaining records are scattered singly from May through November with no other clear pattern in a dataset this small.

Occurrence data from iNaturalist and GBIF.

More mammals in New Hampshire 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