Maine mammals

Smoky Shrew in Maine

Sorex fumeus

Native to Maine S5 Secure in Maine

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

Smoky Shrew in Maine, by the numbers

Rare in Maine 59th most recorded of 85 mammals logged in Maine

110 occurrence records
8 with iNaturalist photos
Jul 30, 2024 Last seen in Maine

110 total records count every Maine occurrence from GBIF and iNaturalist; the monthly chart covers the 109 records with a full observation date.

When to look for the Smoky Shrew in Maine

Most sightings fall in September.

109 Maine occurrence records (iNaturalist and GBIF) by month of year. Shows when the species is recorded, not a guarantee of presence.

Monthly Maine records (table)
MonthRecords
January2
February0
March0
April3
May7
June15
July19
August7
September50
October3
November1
December2

Monthly smoky shrew occurrence records (iNaturalist and GBIF) in Maine.

Seasonality

Year-round in Maine, with recorded sightings peaking in September.

Occurrence map

Where Smoky Shrew has been recorded in Maine

110 records mapped · zoom and drag to explore

110 Maine records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Acadia National Park 2
Schoodic Bog 1

Protected places with the most smoky shrew 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 Maine

CountyRecords
Penobscot County 25
Piscataquis County 20
Somerset County 18
Oxford County 10
Sagadahoc County 7
Franklin County 6
Aroostook County 5
Cumberland County 5
Hancock County 4
Kennebec County 3
Waldo County 3
Washington County 2
Androscoggin County 1
Other localities 1

The complete county distribution, spread across 13 Maine counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

The smoky shrew shows up in Maine’s occurrence data 110 times, most of those as GBIF specimen and survey records rather than casual photos. That count reflects how hard this small, secretive shrew is to document, not how many actually share the state’s forests.

A shrew built for a mossy, damp forest floor

Smoky shrews need cool, moist forest litter with deep leaf duff and rotting logs, usually close to a stream or spring. That habitat runs through Maine’s North Woods and western mountains, where hemlock and mixed hardwood stands hold a damp, mossy floor for most of the year. Acadia’s spruce and fir groves along the coast offer a similar cool, shaded understory, even within sight of the Atlantic.

Hunting mostly by touch, not sight

Smoky shrews have poor eyesight and hunt by touch and smell, digging their own shallow tunnels or borrowing runways other small mammals have already cut through the leaf litter. Insects, centipedes, sowbugs, earthworms, and snails make up most of the diet. A shrew this size burns through energy fast, so it needs to feed almost constantly, in every season.

Status in Maine

NatureServe ranks the smoky shrew S5, secure, and it’s native to Maine. It holds on wherever cool, moss-covered forest floor and rotting wood give it enough cover and food, from the North Woods interior to the shaded groves along the coast.

Occurrence data from iNaturalist and GBIF.

More mammals in Maine 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"