Wildlife Clinic

Species

American bittern

Botaurus lentiginosus

A streaky brown heron that freezes with its bill to the sky, vanishing among the reeds.

An American bittern stalking through shallow marsh water, its brown-and-white striped neck stretched forward and one yellow-green foot lifted mid-step.

Photo Ken-ichi Ueda (opens in a new tab) / iNaturalist, CC BY 4.0 (opens in a new tab)

At a glance

Size
About 60 to 85 cm long
Weight
About 370 to 1,070 g
Habitat
Freshwater and brackish marshes with tall vegetation
Diet
Fish, frogs, crayfish, insects and small mammals
In Georgia
An uncommon winter visitor
Voice
A deep, gulping "oonk-a-lunk", heard on breeding grounds
Rabies vector
No

Identification

Key marks
Stocky brown heron; brown-and-white streaks down the neck; black streak on the side of the neck
Told apart from
Young night-herons, which are spotted, not streaked, with a heavier bill
Told apart from
Least bittern, which is tiny with buff wing patches
Where to look
Edges of tall marsh vegetation in winter

Behaviour

When alarmed, the bittern points its bill straight up and stands still, the streaks on its neck blending with the reeds. It may even sway with the wind.

Why they matter

The American bittern depends on large, undisturbed marshes and has declined as they were drained. Its camouflage is one of the best examples in birds of hiding in plain sight.

Reproduction and lifecycle

Nest — A platform of reeds in dense marsh
Eggs — Usually three to five
Incubation — About 24 to 28 days
Chicks — Fed by the female
Flight — At about seven to eight weeks
Lifespan — Several years

Living around people

  • A bittern in a yard or car park after a night of migration is disoriented; it needs a rehabilitator.

Misconceptions

  • A bird standing stiff with its bill up is dead or stuck. It is hiding.

Related species

Seasonal activity

When this species is breeding, and when there are nests on the ground. Mowing during the shaded months is how most nests are found.

Breeding and active nests by month for this species
JanFebMarAprMayJunJulAugSepOctNovDec
BreedingJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
Active nestsJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
NotesWinteringWinteringLeavingMigrating northNesting farther northNestingChicksYoung flyingMigration beginsArrivingWinteringWintering

Where it lives

Recorded in 78 states and provinces. Each one links to the other animals there, and to the rehabilitators licensed for them.

If you found one

Answer a few questions and you will get a specific answer for what you are looking at.

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