BirdAnalyst
Species · BCR 28 · BBS 2025 Release · 1966–2024

Green Heron In Appalachian Mountains

All regionsAppalachian MountainsWetland birds

Green Heron in Appalachian Mountains has fallen sharply: down 65% on the route-weighted index since 1968.

-65%Since 1968
335Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Green Heron has fallen sharply in Appalachian Mountains: down 65% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Green Heron in Appalachian Mountains is projected to fall about 44% by 2029 — from 0.25 in 2024 to a central estimate of 0.14 (95% range 0.01–0.27). A 5-year backtest shows a typical error of ±23.4%, with 100% of held-out values landing inside the 95% band.

-44%Change by 2029
0.14Projected 2029 index
0.01–0.2795% range
±23.4%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
20250.170.040.30
20260.160.030.29
20270.150.020.29
20280.140.010.28
20290.140.010.27

Routes In Appalachian Mountains

Routes recording Green Heron in Appalachian Mountains.
Pine GroveALABAMA42024
WoodvilleALABAMA42018
EldredPENNSYLVANIA42015
Drehersville 2PENNSYLVANIA42024
GreensportALABAMA32024
LinwoodGEORGIA32019
GeslingKENTUCKY31973
CamptonKENTUCKY31982
Kemah LakeNEW-JERSEY32024
Hop BottomPENNSYLVANIA32015
HonesdalePENNSYLVANIA32024
ParkwoodPENNSYLVANIA32019
BrunnervillePENNSYLVANIA32007
Schaefferstown 2PENNSYLVANIA32018
Corryton RdTENNESSEE32019
FayettevilleWEST-VIRGINIA31995
Yellow SpgWEST-VIRGINIA32022
DearmanvilleALABAMA21983
Smyer LakeALABAMA22021
Mt OliveALABAMA22024
GuntersvilleALABAMA22016
ChildersburgALABAMA21998
YoungtownALABAMA22016
LakeviewALABAMA22016
StevensonALABAMA22024

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