Bats in Connecticut in April

Yes, April is a good month to see bats in Connecticut. It is the 5th busiest month of the year, with 20 of the 236 sightings logged across the year (8.5%), based on verified iNaturalist records.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.

Eastern Red Bat photographed in ConnecticutBig Brown Bat photographed in ConnecticutEastern Red Bat photographed in Connecticut
Photos by iNaturalist observers, used under Creative Commons.

Good month for bats in Connecticut

8.5%

of yearly sightings

20

records in April

#5

busiest month of 12

236

verified records a year

March 5.1%, April 8.5%, May 9.3%. Busiest month is August at 26.7%.

Best months: August, July, JunePeak season right now

236 verified observations of bats in Connecticut, recorded across 12 months of the year on iNaturalist.

When bats are recorded in Connecticut

Peak month

August

63 records (26.7% of the year)

Quietest month

January

6 records

MonthObservationsShare
January62.5%
February83.4%
March125.1%
April208.5%
May229.3%
Junepeak239.7%
Julypeak4117.4%
Augustpeak6326.7%
September156.4%
October104.2%
November83.4%
December83.4%

Bats you are most likely to see

SpeciesVerified observations
Big Brown Bat128
Eastern Red Bat30
Silver-haired Bat9
Little Brown Bat4
Northern Hoary Bat3
Eastern Small-footed Myotis2
Tri-coloured Bat1

In Connecticut, April carries 8.5% of the year's bats sightings, about 0.2 points above an even month-to-month split. That makes it the 5th busiest of the twelve months, out of 12 months with recorded activity.

Activity is rising from March (5.1%) into April, and it heads toward May (9.3%) after. The busiest month is August (26.7%), so if timing is flexible, that window is the safer bet.

The bats most often recorded in Connecticut are Big Brown Bat, Eastern Red Bat and Silver-haired Bat. Those counts are annual totals rather than a April split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in April itself.

Which bats you are most likely to see

  • Big Brown Bat128 records
  • Eastern Red Bat30 records
  • Silver-haired Bat9 records
  • Little Brown Bat4 records
  • Northern Hoary Bat3 records
  • Eastern Small-footed Myotis2 records
Plan your tripAppalachian National Scenic Trail

Plan your bat trip in Connecticut

Start with live tours near Appalachian National Scenic Trail, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Gear to see them

Frequently asked questions

Can you see bats in Connecticut in April?+

Yes. April accounts for 20 of the 236 verified bats sightings logged in Connecticut across the year, which is 8.5% of the annual total.

Is April a good time to see bats in Connecticut?+

April is the 5th busiest month. It is workable, though August and July is the stronger window for a reliable sighting.

What month is best for bats in Connecticut?+

August is the single busiest month, with the broader peak running through August, July and June, based on 236 verified observations.

Which bats are you most likely to see in Connecticut?+

The most-recorded species in Connecticut are Big Brown Bat, Eastern Red Bat and Silver-haired Bat, based on all-time iNaturalist counts.