Iowa mammals

Northern Hoary Bat in Iowa

Lasiurus cinereus

Native to Iowa S4 Apparently Secure in Iowa

Not listed as nonindigenous in Iowa by USGS NAS; native to its Iowa 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 Hoary Bat in Iowa, by the numbers

Occasional in Iowa 48th most recorded of 74 mammals logged in Iowa

15 occurrence records
7 with iNaturalist photos
Aug 12, 2025 Last seen in Iowa

Records from 2000–2026.

15 total records count every Iowa occurrence from GBIF and iNaturalist; the monthly chart covers the 13 records with a full observation date.

When to look for the Northern Hoary Bat in Iowa

Most sightings fall in June to August.

13 Iowa occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence. Based on a small number of dated records; the seasonal pattern may not be representative.

Monthly Iowa records (table)
MonthRecords
January0
February0
March0
April0
May0
June4
July4
August3
September2
October0
November0
December0

Monthly northern hoary bat occurrence records (iNaturalist and GBIF) in Iowa, 2000–2026.

Seasonality

Year-round in Iowa, with recorded sightings peaking in June–August.

Occurrence map

Where Northern Hoary Bat has been recorded in Iowa

15 records mapped · zoom and drag to explore

15 Iowa records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Red Rock Wildlife Management Area 2

Protected places with the most northern hoary 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 Iowa

CountyRecords
Marion County 4
Johnson County 4
Story County 1
Cerro Gordo County 1
Delaware County 1
Black Hawk County 1
Buena Vista County 1
Adair County 1
Butler County 1

The complete county distribution, spread across 9 Iowa counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Northern hoary bats carry a NatureServe S4 apparently secure rank in Iowa despite the species’ G3 global rank, which reflects continent-wide pressure from wind-turbine collision mortality during migration. All 7 of the state’s records come from iNaturalist with no GBIF specimen data, meaning what’s documented here traces entirely to people photographing or detecting the bat directly.

Records cluster entirely in summer, June through August account for all 5 of the monthly-tallied sightings, fitting the window when this solitary, foliage-roosting bat is present for the breeding season before it heads south for winter; the record shows nothing outside that three-month stretch.

Occurrence data from iNaturalist.

More mammals in Iowa in the atlas

Data & sources

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