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

Green Heron Population Trend in Alabama

All statesWetland birds

Green Heron in Alabama has fallen sharply: down 54% on the route-weighted index since 1968.

-54%Since 1968
106Routes In State
58Years

Notable Green Heron Trends in Alabama

long arc declinecomputed index

Green Heron has fallen sharply in Alabama: down 54% on the route-weighted index since 1968.

Green Heron Population Forecast in Alabama

If the recent trend holds, Green Heron in Alabama is projected to stay roughly flat through 2029, near 0.45 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±118.2%, with 100% of held-out values landing inside the 95% band.

-8%Change by 2029
0.45Projected 2029 index
0.00–1.195% range
±118.2%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
20250.500.001.1
20260.490.001.1
20270.480.001.1
20280.460.001.1
20290.450.001.1

Green Heron Survey Routes in Alabama

Routes recording Green Heron in Alabama.
Pine Grove420241968
Woodville420181997
Chacaloochee Bay420192009
Hillsboro319961969
Greensport320241967
Howard320191966
Calebee320231995
Valhermoso Spg 2320142014
Triana320122000
Swaim220141971
Dearmanville219831966
Smyer Lake220211967
Mt Olive220241966
Warrior Std220241966
Cottonton220211966
Newton219981998
Brantley220081968
South220091966
Alabama Pt220011966
Foley219821972
Blocton220161969
Guntersville220161980
Childersburg219981985
Youngtown220161994
Mt. Gilead220101995

Green Heron Population Trend in Other States

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

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