Connecticut mammals

Northern Short-tailed Shrew in Connecticut

Blarina brevicauda

Native to Connecticut S5 Secure in Connecticut

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

Northern Short-tailed Shrew in Connecticut, by the numbers

Common in Connecticut 15th most recorded of 70 mammals logged in Connecticut

466 occurrence records
218 with iNaturalist photos
Jun 25, 2026 Last seen in Connecticut

466 total records count every Connecticut occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 442 records with a full observation date.

When to look for the Northern Short-tailed Shrew in Connecticut

Most sightings fall in July to September.

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

Monthly Connecticut records (table)
MonthRecords
January9
February14
March12
April31
May39
June40
July57
August63
September77
October34
November35
December31

Monthly northern short-tailed shrew occurrence records (iNaturalist and GBIF) in Connecticut.

Seasonality

Year-round in Connecticut, with recorded sightings peaking in July–September.

Occurrence map

Where Northern Short-tailed Shrew has been recorded in Connecticut

300 records mapped · zoom and drag to explore

300 Connecticut records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
West Rock Ridge State Park 2
Mansfield Hollow Wildlife Management Area 1
Fort Griswold Battlefield Area 1
Bluff Point 1
American Legion State Forest 1
Squantz Pond State Park 1
State Park 1

Protected places with the most northern short-tailed 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 Connecticut

CountyRecords
New Haven County 131
Tolland County 70
Hartford County 62
Fairfield County 61
Litchfield County 59
Windham County 33
New London County 29
Middlesex County 9
Other localities 12

The complete county distribution, spread across 8 Connecticut counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Connecticut’s open databases hold 466 records for the northern short-tailed shrew, split fairly evenly between iNaturalist and GBIF entries.

A generalist that turns up almost anywhere with leaf litter

Unlike shrews that need a narrow set of conditions, the short-tailed shrew works almost any moist, leaf-littered ground with enough soil life to hunt. That flexibility shows in where Connecticut’s records land: the tangled coastal forest of Bluff Point State Park on the shoreline, the hardwood slopes of Sleeping Giant State Park’s trap rock ridge inland, and points between. It spends most of its life below the surface, running a shallow network of tunnels and surface runways through leaf litter rather than foraging in the open.

A shrew that hunts with venom

Few North American mammals carry venom, but the short-tailed shrew is one of them. A toxin in its saliva helps subdue insects, earthworms, snails, and even mice and other prey larger than the shrew itself, and its constant burning metabolism keeps it hunting through the day and night in short, frequent bursts rather than settling into one active period. Records climb steadily from spring, peak in September, and stay strong into fall, tracking a stretch when young shrews from the year’s litters are dispersing and turning up in more places.

Status in Connecticut

NatureServe ranks the short-tailed shrew S5, secure, and it’s native across Connecticut, from the Long Island Sound shoreline to the state’s inland hill country.

Occurrence data from iNaturalist and GBIF.

More mammals in Connecticut in the atlas

Data & sources

The data and visualizations on this page draw on these open sources: