BirdAnalyst
Species · BCR 37 · BBS 2025 Release · 1966–2024

Prothonotary Warbler In Gulf Coastal Prairie

All regionsGulf Coastal PrairieForest birds

Prothonotary Warbler in Gulf Coastal Prairie has collapsed: down 87% on the route-weighted index since 1969.

-87%Since 1969
14Routes In Region
40Years

Notable Signals

long arc declinecomputed index

Prothonotary Warbler has collapsed in Gulf Coastal Prairie: down 87% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Prothonotary Warbler in Gulf Coastal Prairie is projected to stay roughly flat through 2029, near 0.16 (95% range 0.00–1.3). A 5-year backtest shows a typical error of ±339.2%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.16Projected 2029 index
0.00–1.395% range
±339.2%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
20250.220.001.4
20260.200.001.4
20270.190.001.4
20280.180.001.3
20290.160.001.3

Routes In Gulf Coastal Prairie

Routes recording Prothonotary Warbler in Gulf Coastal Prairie.
JuniorLOUISIANA181991
LafitteLOUISIANA41991
GlencoeLOUISIANA42017
Ltl ChenierLOUISIANA42008
Forked Island 2LOUISIANA42011
MamouLOUISIANA21975
EstherLOUISIANA12024
MauriceLOUISIANA12023
RichardLOUISIANA12013
Forked IslandLOUISIANA12016
Vinton 2LOUISIANA12014
DanburyTEXAS11977
Port AcresTEXAS12008
Moon Lake 2TEXAS12012

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