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

Green Heron Population Trend in Florida

All statesWetland birds

Green Heron in Florida has fallen sharply: down 64% on the route-weighted index since 1968.

-64%Since 1968
117Routes In State
58Years

Notable Green Heron Trends in Florida

long arc declinecomputed index

Green Heron has fallen sharply in Florida: down 64% on the route-weighted index since 1968.

Green Heron Population Forecast in Florida

If the recent trend holds, Green Heron in Florida is projected to fall about 53% by 2029 — from 1.1 in 2024 to a central estimate of 0.53 (95% range 0.00–1.8). A 5-year backtest shows a typical error of ±34.3%, with 100% of held-out values landing inside the 95% band.

-53%Change by 2029
0.53Projected 2029 index
0.00–1.895% range
±34.3%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
20250.700.001.9
20260.660.001.9
20270.610.001.8
20280.570.001.8
20290.530.001.8

Green Heron Survey Routes in Florida

Routes recording Green Heron in Florida.
Holey Land2020241987
Tamiami1019741966
Broward919731966
Shawano920021987
Clewiston920232015
Mt. Olive920092002
Andytown819981974
St Lucie820241987
Devils Gardn820241987
Boca Raton619941968
Pennywash Cr620241987
Weaver Stn620191987
Ft Waltn Bch520111966
Port St Joe520111968
Pinecrest520241966
Winter Gardn520181988
Oak Grove420111967
Miller Xrds420181987
Deanville420191987
Lovedale420111987
Dale Mabry319881966
Scottsmoor320241968
Sunniland Gr320211966
Salvista319791967
Plantation K320041966

Green Heron Population Trend in Other States

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

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