New York mammals

Silver-haired Bat in New York

Lasionycteris noctivagans

Native to New York S2B Imperiled in New York

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

Silver-haired Bat in New York, by the numbers

Occasional in New York 38th most recorded of 102 mammals logged in New York

226 occurrence records
120 with iNaturalist photos
May 31, 2026 Last seen in New York

Records from 2000–2026.

226 total records count every New York occurrence from GBIF and iNaturalist; the monthly chart covers the 223 records with a full observation date.

When to look for the Silver-haired Bat in New York

Most sightings fall in August to October.

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

Monthly New York records (table)
MonthRecords
January1
February4
March12
April18
May26
June4
July9
August49
September38
October40
November15
December7

Monthly silver-haired bat occurrence records (iNaturalist and GBIF) in New York, 2000–2026.

Seasonality

Year-round in New York, with recorded sightings peaking in August–October.

Occurrence map

Where Silver-haired Bat has been recorded in New York

226 records mapped · zoom and drag to explore

225 New York records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Long Island 8
Fire Island National Seashore 4
Hamlin Beach State Park 2
Golden Hill State Park 1
Gateway National Recreation Area 1
Hudson River Park 1
Hempstead Lake State Park 1
Glenmeal State Forest 1

Protected places with the most silver-haired 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 York

CountyRecords
Lewis County 81
New York County 34
Suffolk County 23
Kings County 20
Nassau County 13
Tompkins County 11
Richmond County 7
Bronx County 7
Queens County 6
Monroe County 5
Franklin County 3
Westchester County 2
11 other counties 14

The complete county distribution, spread across 23 New York counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Silver-haired bats carry a NatureServe S2B imperiled breeding rank in New York, notably more precarious than the species’ G4 global rating, for one of North America’s most migratory bats. Long Island’s 8 logged sightings anchor the coastal migration corridor this species funnels through on its way south each fall.

August through October together account for 127 of the 226 records, well over half the total, the classic fall passage window along the Atlantic coast; the record nearly vanishes in January (1 sighting), consistent with the species having largely left New York for winter roosting grounds farther south.

Occurrence data from iNaturalist and GBIF.

More mammals in New York 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"