BirdAnalyst
Species · Louisiana · BBS 2025 Release · 1966–2024

Prothonotary Warbler Population Trend in Louisiana

All statesForest birds

Prothonotary Warbler in Louisiana has surged: up 194% on the route-weighted index since 1969.

+194%Since 1969
81Routes In State
57Years

Notable Prothonotary Warbler Trends in Louisiana

long arc increasecomputed index

Prothonotary Warbler has surged in Louisiana: up 194% on the route-weighted index since 1969.

Prothonotary Warbler Population Forecast in Louisiana

If the recent trend holds, Prothonotary Warbler in Louisiana is projected to rise about 27% by 2029 — from 6.0 in 2024 to a central estimate of 7.6 (95% range 3.7–11). A 5-year backtest shows a typical error of ±34%, with 100% of held-out values landing inside the 95% band.

+27%Change by 2029
7.6Projected 2029 index
3.7–1195% range
±34%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
20257.33.411
20267.33.511
20277.43.611
20287.53.711
20297.63.711

Prothonotary Warbler Survey Routes in Louisiana

Routes recording Prothonotary Warbler in Louisiana.
Atchafalaya5220241989
Kraemer4520241997
Ramah4120241988
Berwick3120181987
Tensas Nwr2220241987
Shaw2020241967
Junior1819911987
Frogmore1820241998
Freetown920191967
Morgan City819861967
Mayflower820241969
Carlisle719881968
Enterprise620242008
Lafitte419911967
Plettenberg420221968
Glencoe420171988
Belair420241991
Ltl Chenier420082008
Rayville 2420242009
Natchez420241992
Evelyn420242009
Forked Island 2420112010
Lacombe319731968
Easton319901967
Cypress319871967

Prothonotary Warbler Population Trend in Other States

alabamaarkansasdelawarefloridageorgiaillinoisindianaiowakansaskentuckymarylandmichiganminnesotamississippimissourinew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniasouth-carolinatennesseetexasvirginiawest-virginiawisconsin

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