Herons and egrets (Ardeidae)

Baby green herons: from egg to fledgling

A Green Heron lays 2–6 eggs. They hatch after 19–21 days, and the young leave the nest 16–17 days later — about 35–38 days from egg to fledgling.

Green Heron, verified photograph
Adult Green Heron — photo: Wikimedia Commons
Eggs per clutch
2–6 eggs
Incubation
19–21 days
Time in the nest
16–17 days
Egg to fledgling
About 35–38 days
Broods per year
1–2 per season
Nest
Loose stick platform in a shrub or tree over water
Uses nest boxes
No

Stage by stage

  • Eggs (19–21 days): 2–6 eggs per clutch. Most songbirds start incubating when the last or second-to-last egg is laid, so the young hatch close together; owls and hawks start with the first egg, so their chicks hatch days apart.
  • Nestlings (16–17 days): the young hatch with little or no down and their eyes closed. They grow fast on a diet the parents bring in. In the breeding season green herons mainly eat minnows, frogs, crayfish and dragonflies.
  • Fledglings: after leaving the nest, young green herons are fully feathered but short-tailed and clumsy. They spend days to weeks on low branches or the ground while the parents keep feeding them.
  • More broods: 1–2 per season. Pairs often start a new nest soon after the first young become independent.

When green herons nest, state by state

Nesting starts earliest in Alabama (Mar) and latest in Maine (May). Months are estimates from regional breeding data shifted for latitude.

State / provinceNesting season
AlabamaMar–Jul
ArizonaMar–Jul
ArkansasApr–Jul
CaliforniaMar–Jul
ConnecticutApr–Jul
DelawareApr–Jul
FloridaMar–Jul
GeorgiaMar–Jul
IllinoisApr–Jul
IndianaApr–Jul
IowaApr–Jul
KansasApr–Jul
KentuckyApr–Jul
LouisianaMar–Jul
MaineMay–Jul
MarylandApr–Jul
MassachusettsApr–Jul
MichiganApr–Jul
MinnesotaMay–Jul
MississippiMar–Jul
MissouriApr–Jul
NebraskaApr–Jul
New BrunswickMay–Jul
New HampshireMay–Jul
New JerseyApr–Jul
New MexicoApr–Jul
New YorkApr–Jul
North CarolinaApr–Jul
North DakotaMay–Jul
Nova ScotiaMay–Jul
OhioApr–Jul
OklahomaApr–Jul
OntarioMay–Jul
OregonApr–Jul
PennsylvaniaApr–Jul
QuebecMay–Jul
Rhode IslandApr–Jul
South CarolinaMar–Jul
South DakotaApr–Jul
TennesseeApr–Jul
TexasMar–Jul
VermontMay–Jul
VirginiaApr–Jul
WashingtonApr–Jul
West VirginiaApr–Jul
WisconsinMay–Jul

Found a baby Green Heron?

  • Feathered, hopping, can grip your finger: a fledgling. This is a normal stage. Keep pets and children away and watch from a distance; the parents are usually close by.
  • Bare skin or only pin feathers: a nestling that fell. If you can see the nest, put it back. Touching it won't make the parents abandon it — that is a myth.
  • Injured, cold, covered in flies, or caught by a cat: contact a licensed wildlife rehabilitator. In the US and Canada, ahnow.org finds the nearest one.
  • Don't give water or food. Baby birds can choke, and the wrong food can kill them.

More about green herons

Frequently asked

How long do baby green herons stay in the nest?

About 16–17 days after hatching. Eggs take 19–21 days to hatch, so it is roughly 35–38 days from the last egg to the young leaving.

How many eggs does a Green Heron lay?

2–6 eggs per clutch, with 1–2 per season.

Where do green herons nest?

Loose stick platform in a shrub or tree over water.

What should I do if I find a baby Green Heron on the ground?

If it has feathers and hops, it is a fledgling and its parents are almost certainly nearby — leave it. If it is naked or has pin feathers, put it back in the nest if you can. Call a licensed wildlife rehabilitator if it is injured.