BirdAnalyst
Species · Indiana · BBS 2025 Release · 1966–2024

Green Heron Population Trend in Indiana

All statesWetland birds

Green Heron in Indiana has fallen sharply: down 66% on the route-weighted index since 1968.

-66%Since 1968
61Routes In State
58Years

Notable Green Heron Trends in Indiana

long arc declinecomputed index

Green Heron has fallen sharply in Indiana: down 66% on the route-weighted index since 1968.

Green Heron Population Forecast in Indiana

If the recent trend holds, Green Heron in Indiana is projected to stay roughly flat through 2029, near 0.33 (95% range 0.00–0.69). A 5-year backtest shows a typical error of ±36.1%, with 100% of held-out values landing inside the 95% band.

+1%Change by 2029
0.33Projected 2029 index
0.00–0.6995% range
±36.1%Backtest error
19662029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20250.360.000.72
20260.350.000.71
20270.340.000.71
20280.340.000.70
20290.330.000.69

Green Heron Survey Routes in Indiana

Routes recording Green Heron in Indiana.
Gary519951980
Thorntown320221982
Corydon320241966
Portage320042000
South Bend219901970
Columbia Cty220221982
Ellis220211966
Tipton219921967
Pimento220231983
Brazil220241966
Belmont220231983
Shelbyville219881986
Brookville220211966
Cumback220021968
Celestine220241980
Scottsburg220211982
Evansville220191966
Wallace220171999
Witts Station220242000
Newberry220192000
Cyprss220102002
Packertown 2220242008
Hebron120171967
Knox120231981
Kewanna120091981

Green Heron Population Trend in Other States

alabamaarizonaarkansascaliforniaconnecticutdelawarefloridageorgiaillinoisiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawashingtonwest-virginiawisconsin

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.