Species · BCR 25 · BBS 2025 Release · 1966–2024

Little Blue Heron In West Gulf Coastal Plain / Ouachitas

Little Blue Heron in West Gulf Coastal Plain / Ouachitas has collapsed: down 92% on the route-weighted index since 1969.

-92%Since 1969
88Routes In Region
57Years

Notable Signals

long arc declinecomputed index

Little Blue Heron has collapsed in West Gulf Coastal Plain / Ouachitas: down 92% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Little Blue Heron in West Gulf Coastal Plain / Ouachitas is projected to fall about 100% by 2029 — from 0.57 in 2024 to a central estimate of 0.00 (95% range 0.00–2.5). A 5-year backtest shows a typical error of ±62.3%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.002.595% range
±62.3%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
20250.000.002.5
20260.000.002.5
20270.000.002.5
20280.000.002.5
20290.000.002.5

Routes In West Gulf Coastal Plain / Ouachitas

Routes recording Little Blue Heron in West Gulf Coastal Plain / Ouachitas.
NatchitochesLOUISIANA271991
DerryLOUISIANA191989
PoyenARKANSAS142006
EastonLOUISIANA141990
Poyen 2ARKANSAS92011
Derry 2LOUISIANA92024
FillmoreLOUISIANA61989
HollywoodARKANSAS51998
Flat CreekLOUISIANA52007
PocolaOKLAHOMA52006
OakdaleLOUISIANA41994
NatchezLOUISIANA42024
EvelynLOUISIANA42024
Lake CoveLOUISIANA42018
CanadianOKLAHOMA42003
GoodwaterOKLAHOMA42021
Bon WierTEXAS42024
Lance Rosier BithTEXAS42017
RamseyARKANSAS31996
CypressLOUISIANA31987
De QuincyLOUISIANA32017
Pine PrairieLOUISIANA31997
CrowsARKANSAS21986
StarkARKANSAS22005
NanceARKANSAS22006

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