BirdAnalyst
Species · BCR 27 · BBS 2025 Release · 1966–2024

Green Heron In Southeastern Coastal Plain

All regionsSoutheastern Coastal PlainWetland birds

Green Heron in Southeastern Coastal Plain has fallen sharply: down 52% on the route-weighted index since 1968.

-52%Since 1968
317Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Green Heron has fallen sharply in Southeastern Coastal Plain: down 52% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Green Heron in Southeastern Coastal Plain is projected to fall about 12% by 2029 — from 0.57 in 2024 to a central estimate of 0.50 (95% range 0.00–1.0). A 5-year backtest shows a typical error of ±22.8%, with 100% of held-out values landing inside the 95% band.

-12%Change by 2029
0.50Projected 2029 index
0.00–1.095% range
±22.8%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
20250.570.071.1
20260.550.051.1
20270.540.031.0
20280.520.011.0
20290.500.001.0

Routes In Southeastern Coastal Plain

Routes recording Green Heron in Southeastern Coastal Plain.
Kiawah IslandSOUTH-CAROLINA142024
BeargrassNORTH-CAROLINA101981
BackbayVIRGINIA81974
MaconMISSISSIPPI72024
GrandyNORTH-CAROLINA71975
JarvisburgNORTH-CAROLINA61999
Ft Waltn BchFLORIDA52011
Port St JoeFLORIDA52011
Olive BranchMISSISSIPPI52001
Okatibbee L.MISSISSIPPI52008
Chacaloochee BayALABAMA42019
Oak GroveFLORIDA42011
Miller XrdsFLORIDA42018
LovedaleFLORIDA42011
KellerGEORGIA41993
PoplarvilleMISSISSIPPI41978
DuffeeMISSISSIPPI42001
FontainbleauMISSISSIPPI41977
DortchesNORTH-CAROLINA42024
Johns IsleSOUTH-CAROLINA41979
HowardALABAMA32019
CalebeeALABAMA32023
GuytonGEORGIA31989
LyonsGEORGIA31992
NewtonGEORGIA32024

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