New York mammals

Long-tailed Weasel in New York

Neogale frenata

Native to New York S5 Secure 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.

Long-tailed Weasel in New York, by the numbers

Occasional in New York 42nd most recorded of 102 mammals logged in New York

329 occurrence records
105 with iNaturalist photos
Jun 30, 2026 Last seen in New York

Records from 2000–2026.

329 total records count every New York occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 321 records with a full observation date.

When to look for the Long-tailed Weasel in New York

Most sightings fall in June to July.

321 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
January28
February14
March14
April17
May29
June54
July54
August32
September15
October16
November20
December28

Monthly long-tailed weasel occurrence records (iNaturalist and GBIF) in New York, 2000–2026.

Seasonality

Year-round in New York, with recorded sightings peaking in June–July.

Occurrence map

Where Long-tailed Weasel has been recorded in New York

300 records mapped · zoom and drag to explore

300 New York records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Harriman State Park 4
Camillus Forest Unique Area 3
Long Island 1
Buttermilk Falls State Park 1
Minnewaska State Park 1
Sentinel Range Wilderness 1
Taughannock Falls State Park 1

Protected places with the most long-tailed weasel 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
Ulster County 119
Tompkins County 38
Suffolk County 13
Onondaga County 13
Albany County 11
Franklin County 11
Saratoga County 11
Westchester County 9
Genesee County 7
Dutchess County 6
Cattaraugus County 6
Essex County 6
32 other counties 79

The complete county distribution, spread across 44 New York counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

New York holds 755 documented long-tailed weasel records, split between iNaturalist finds and a much larger GBIF base. Reports run from the Adirondacks to Long Island, a wider stretch of the state than almost any other native carnivore covers, even though the animal itself stays mostly out of sight.

A generalist that covers the whole state

Long-tailed weasels don’t specialize in one type of country the way many New York mammals do. They hunt at woodland edges, along the wooded gorges and lakeshores of the Finger Lakes and Adirondacks, and just as readily through the marsh edges and scrub of Long Island, wherever rodents and rabbits are easy to find. That spread of records, from boreal high country to coastal lowland, reflects a weasel built to work edge habitat rather than one habitat type.

A coat that changes with the climate

In the coldest parts of their range, long-tailed weasels molt to a white winter coat with a black-tipped tail, the same trick northern ermine use to disappear against snow. The Adirondacks get cold and snowy enough for that white coat to show up on winter weasels there, while the milder Long Island coast likely keeps its weasels brown all year.

Status in New York

NatureServe ranks the long-tailed weasel S5, secure, in New York, and it’s native to the state. Its broad habitat tolerance, from Adirondack forest edges to Long Island scrub, is likely a big part of why it keeps turning up in records across so much of the state.

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"