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Least Bittern

Botaurus exilis · Herons, Egrets, and Bitterns

Least Bittern (Botaurus exilis)
(c) Oldqingwa, some rights reserved (CC BY-NC-ND), uploaded by Oldqingwa · CC BY-NC-ND · via iNaturalist

Least Bittern (Botaurus exilis) is in the Herons, Egrets, and Bitterns family (Ardeidae). Across the U.S., iNaturalist users have logged 4,706 research-grade observations of it in our sample, peaking in May.

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 Least Bittern: observations by month (U.S.)

JanFebMarAprMayJunJulAugSepOctNovDec

About Least Bittern

The least bittern (Botaurus exilis) is a small heron, the smallest member of the family Ardeidae found in the Americas. This species was formerly placed in the genus Ixobrychus.From Wikipedia via iNaturalist — article, CC BY-SA.

Least Bittern by state

StateObservationsPeak monthMain season
Florida1,247MayMar–Jul
Texas1,076AprilApr–May
California455JulyApr–Sep
Arizona229MayMar–Aug
Louisiana165AprilApr–Jul
Ohio140MayMay–Aug
New York127JuneApr–Sep
Maryland126MayApr–Jul
Illinois120MayApr–Jun
Massachusetts107MayMay–Aug
South Carolina94MayApr–Jul
Wisconsin63JulyMay–Aug
Pennsylvania61MayMay–Aug
Delaware58JulyJun–Aug
Minnesota57JuneMay–Aug
New Jersey48MayMay–Sep
Michigan47JuneMay–Sep
Mississippi47AprilApr–Jul
Georgia46JuneApr–Jul
North Carolina45JuneMay–Jul
Virginia45JuneMay–Jul
Alabama32JuneApr–Jul
Vermont32JulyMay–Jul
Nevada31MayApr–May
Tennessee25MayMay–May
Colorado21MayMay–Jun
New Mexico19JulyJul–Jul
Missouri18MayMay–Oct
Kansas17JuneMay–Jun
New Hampshire16JuneMay–Aug
Indiana15MayMay–Jul
Iowa13JuneJun–Jul
Oklahoma12JulyJul–Jul
Connecticut10MayMay–Jul
Nebraska10MayMay–Sep
Maine6MayMay–May
Arkansas5MayMay–May
Rhode Island5JuneJun–Aug

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

Related birds (Herons, Egrets, and Bitterns)

Photography tips

  • Use a fast shutter (1/2000 s or faster) for birds in flight.
  • Focus on the eye and shoot at the bird's eye level.
  • Approach slowly and stop if the bird changes behavior; never bait or flush birds.
  • Morning activity peaks in the first two hours after sunrise.

FAQ

When is the best time to photograph Least Bittern?
Nationally, May has the most observations, with the main season from April to August.
Where is Least Bittern most often seen?
The most observations come from Florida, Texas, California.