Massachusetts mammals

Gray Fox in Massachusetts

Urocyon cinereoargenteus

Native to Massachusetts S5 Secure in Massachusetts

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

Gray Fox in Massachusetts, by the numbers

Common in Massachusetts 27th most recorded of 93 mammals logged in Massachusetts

515 occurrence records
496 with iNaturalist photos
Jul 8, 2026 Last seen in Massachusetts

Records from 2000–2026.

515 total records count every Massachusetts occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 510 records with a full observation date.

When to look for the Gray Fox in Massachusetts

Most sightings fall in May to June.

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

Monthly Massachusetts records (table)
MonthRecords
January48
February28
March34
April24
May51
June64
July37
August42
September51
October53
November41
December37

Monthly gray fox occurrence records (iNaturalist and GBIF) in Massachusetts, 2000–2026.

Seasonality

Year-round in Massachusetts, with recorded sightings peaking in May–June, with a smaller rise in August–November and January.

Occurrence map

Where Gray Fox has been recorded in Massachusetts

300 records mapped · zoom and drag to explore

300 Massachusetts records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Franklin Park Zoo 58
Minute Man National Historical Park 4

Protected places with the most gray fox 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 Massachusetts

CountyRecords
Middlesex County 161
Hampshire County 64
Worcester County 63
Suffolk County 61
Plymouth County 46
Essex County 27
Franklin County 21
Berkshire County 20
Bristol County 17
Norfolk County 16
Hampden County 14
Barnstable County 2
Other localities 3

The complete county distribution, spread across 12 Massachusetts counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Gray foxes are the one wild dog in Massachusetts that regularly climbs trees, using hooked claws and flexible forelegs to escape a coyote or reach fruit high in a canopy. They favor denser forest cover than the more open-country red fox, which is likely why records here concentrate in the wooded reservations around Great Meadows National Wildlife Refuge, Walden Pond, and Blue Hills Reservation rather than the state’s more open farmland.

Records stay fairly level across the year with no single dominant month, a pattern that fits a species active on its own schedule through denning, raising kits, and dispersing young rather than clustering around one seasonal event. Massachusetts’ NatureServe rank of S5, secure, points to a stable population statewide.

Occurrence data from iNaturalist and GBIF.

Gray Fox in other states

View all states →

More mammals in Massachusetts 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"