BirdAnalyst
Species · BCR 30 · BBS 2025 Release · 1966–2024

Green Heron In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastWetland birds

Green Heron in New England / Mid-Atlantic Coast has declined: down 47% on the route-weighted index since 1968.

-47%Since 1968
154Routes In Region
58Years

Notable Signals

No notable trend signals for Green Heron in New England / Mid-Atlantic Coast. See the full index history below.

Forecast

If the recent trend holds, Green Heron in New England / Mid-Atlantic Coast is projected to fall about 17% by 2029 — from 0.42 in 2024 to a central estimate of 0.35 (95% range 0.11–0.59). A 5-year backtest shows a typical error of ±10%, with 100% of held-out values landing inside the 95% band.

-17%Change by 2029
0.35Projected 2029 index
0.11–0.5995% range
±10%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
20250.390.150.63
20260.380.140.62
20270.370.130.61
20280.360.120.60
20290.350.110.59

Routes In New England / Mid-Atlantic Coast

Routes recording Green Heron in New England / Mid-Atlantic Coast.
WilmingtonDELAWARE62012
Bethany BchDELAWARE61990
HongaMARYLAND62024
Bennett MillNEW-JERSEY61976
IndiantownMARYLAND52014
DeepwaterNEW-JERSEY51977
SpraguetownNEW-JERSEY51983
GranbyCONNECTICUT42016
GeorgetownDELAWARE42021
MadisonMARYLAND42024
CokesburyMARYLAND42024
Milton 2DELAWARE32017
St. George'S IslandMARYLAND32016
Grove NeckMARYLAND31996
NewburyportMASSACHUSETTS32011
Del HavenNEW-JERSEY31991
Port RoyalVIRGINIA32019
WarrenCONNECTICUT22010
Long HillCONNECTICUT21990
HarringtonDELAWARE22024
FredericaDELAWARE22014
BlackbirdDELAWARE22024
Kittery PtMAINE21985
JonesMARYLAND21992
BeltsvilleMARYLAND22008

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