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

Green Heron Population Trend in Minnesota

All statesWetland birds

Green Heron in Minnesota has edged down: down 14% on the route-weighted index since 1969.

-14%Since 1969
62Routes In State
57Years

Notable Green Heron Trends in Minnesota

No notable trend signals for Green Heron in Minnesota. See the full index history below.

Green Heron Population Forecast in Minnesota

If the recent trend holds, Green Heron in Minnesota is projected to fall about 26% by 2029 — from 0.31 in 2024 to a central estimate of 0.23 (95% range 0.00–0.52). A 5-year backtest shows a typical error of ±75%, with 100% of held-out values landing inside the 95% band.

-26%Change by 2029
0.23Projected 2029 index
0.00–0.5295% range
±75%Backtest error
19672029
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
20250.240.000.53
20260.240.000.53
20270.230.000.53
20280.230.000.52
20290.230.000.52

Green Heron Survey Routes in Minnesota

Routes recording Green Heron in Minnesota.
Sherburne Nr420241991
Big Stone420111996
Chokio320051989
Le Center320231997
Millville219861971
Courtland220231978
Redwood Fall219801980
St Stephen220161967
Wigwam Bay220231970
Tenney219961978
Caledonia 2220222018
Debs220241994
Lake Bronson219791979
Franklin220212021
Cass Lake219831982
Brook Park220242003
Mcgregor220001998
Brainerd220111993
Money Creek120141970
Chatfield119881977
Hartland120121968
Huntley120171982
Chandler120231971
Ash Creek120191980
Lakeville120181968

Green Heron Population Trend in Other States

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

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