Eastern Red Bat

Eastern Red Bat (Lasiurus borealis) is in the Evening Bats family (Vespertilionidae). Across the U.S., iNaturalist users have logged 4,230 research-grade observations of it in our sample, peaking in April.

Seasonal pattern in the national data: summer visitor / breeder. Counts also reflect when people are out photographing, so compare months within a state rather than across states.

When to photograph Eastern Red Bat: observations by month (U.S.)

About Eastern Red Bat

The eastern red bat (Lasiurus borealis) is a species of bat in the family Vespertilionidae. Eastern red bats are widespread across eastern North America, with additional records in Bermuda. They are also present, though rare, throughout many of the Bahamian islands. The eastern red bat is closely related to the desert red bat (Lasiurus blossevillii); the two species are sometimes collectively referred to simply as red bats.From Wikipedia via iNaturalist — article, CC BY-SA.

Eastern Red Bat by state

Main season = months with at least 30% of the state's peak-month count.

Related mammals (Evening Bats)

Big Brown BatEptesicus fuscus

Tri-coloured BatPerimyotis subflavus

Silver-haired BatLasionycteris noctivagans

Pallid BatAntrozous pallidus

Northern Hoary BatLasiurus cinereus

Photography tips

• Keep a legal and safe distance: 100 yards from bears and wolves and 25 yards from other large animals in national parks.
• Dawn and dusk are peak activity times for most mammals.
• Use your car as a blind on wildlife drives.

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