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

Prairie Warbler Population Trend in Louisiana

All statesForest birds

Prairie Warbler in Louisiana has surged: up 235% on the route-weighted index since 1969.

+235%Since 1969
51Routes In State
55Years

Notable Prairie Warbler Trends in Louisiana

long arc increasecomputed index

Prairie Warbler has surged in Louisiana: up 235% on the route-weighted index since 1969.

Prairie Warbler Population Forecast in Louisiana

If the recent trend holds, Prairie Warbler in Louisiana is projected to fall about 41% by 2029 — from 2.1 in 2024 to a central estimate of 1.2 (95% range 0.36–2.1). A 5-year backtest shows a typical error of ±44%, with 20% of held-out values landing inside the 95% band.

-41%Change by 2029
1.2Projected 2029 index
0.36–2.195% range
±44%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
20251.20.312.0
20261.20.322.0
20271.20.332.1
20281.20.352.1
20291.20.362.1

Prairie Warbler Survey Routes in Louisiana

Routes recording Prairie Warbler in Louisiana.
Fort Polk1019701967
Trout1020241988
Flat Creek1020241998
Derry 21020241990
Linville920241998
Clay920241968
Zwolle720231998
Ivan620131998
Hargis620092005
Enterprise620242008
Cheniere620241984
Many519921989
Norwood520242006
Slidell519871984
Ivan 2520162014
Fort Jessup420231998
Evelyn420242005
Mount Union420241998
Womack420241999
Morgan City319761973
Chatham319731967
Longstreet320241967
Marion319961988
Grayson320212005
Hargis 2220142013

Prairie Warbler Population Trend in Other States

alabamaarkansascaliforniaconnecticutdelawarefloridageorgiaillinoisindianakentuckymainemarylandmassachusettsmichiganmississippimissourinew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawest-virginiawisconsin

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