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

Brown-headed Cowbird In West Gulf Coastal Plain / Ouachitas

All regionsWest Gulf Coastal Plain / OuachitasGeneralists

Brown-headed Cowbird in West Gulf Coastal Plain / Ouachitas has fallen sharply: down 54% on the route-weighted index since 1969.

-54%Since 1969
110Routes In Region
57Years

Notable Signals

long arc declinecomputed index

Brown-headed Cowbird has fallen sharply in West Gulf Coastal Plain / Ouachitas: down 54% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Brown-headed Cowbird in West Gulf Coastal Plain / Ouachitas is projected to fall about 45% by 2029 — from 7.5 in 2024 to a central estimate of 4.2 (95% range 0.00–8.8). A 5-year backtest shows a typical error of ±22.9%, with 100% of held-out values landing inside the 95% band.

-45%Change by 2029
4.2Projected 2029 index
0.00–8.895% range
±22.9%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
20255.20.579.8
20264.90.329.5
20274.70.079.3
20284.40.009.0
20294.20.008.8

Routes In West Gulf Coastal Plain / Ouachitas

Routes recording Brown-headed Cowbird in West Gulf Coastal Plain / Ouachitas.
MatoyOKLAHOMA462000
GoodwaterOKLAHOMA402021
PocolaOKLAHOMA352016
Coal HillARKANSAS292023
HargisLOUISIANA232011
ChandlerTEXAS232004
LongstreetLOUISIANA202024
DerryLOUISIANA191989
Ivan 2LOUISIANA192016
EvelynLOUISIANA192024
Lake CoveLOUISIANA192018
LockesburgARKANSAS182019
CanadianOKLAHOMA182017
IvanLOUISIANA172013
PhillipsOKLAHOMA172008
DibollTEXAS172024
Liberty HillTEXAS172023
SmyrnaTEXAS162010
StarkARKANSAS152024
EnterpriseLOUISIANA152024
SandbluffOKLAHOMA151995
FillmoreLOUISIANA141989
HopeARKANSAS132024
TroutLOUISIANA132024
IndianolaOKLAHOMA132024

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