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

Pine Warbler Population Trend in Indiana

All statesForest birds

Pine Warbler in Indiana has surged: up 253% on the route-weighted index since 1986.

+253%Since 1986
8Routes In State
38Years

Notable Pine Warbler Trends in Indiana

long arc increasecomputed index

Pine Warbler has surged in Indiana: up 253% on the route-weighted index since 1986.

Pine Warbler Population Forecast in Indiana

If the recent trend holds, Pine Warbler in Indiana is projected to stay roughly flat through 2029, near 0.15 (95% range 0.00–0.37). A 5-year backtest shows a typical error of ±23.8%, with 100% of held-out values landing inside the 95% band.

-6%Change by 2029
0.15Projected 2029 index
0.00–0.3795% range
±23.8%Backtest error
19832029
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
20250.150.000.37
20260.150.000.37
20270.150.000.37
20280.150.000.37
20290.150.000.37

Pine Warbler Survey Routes in Indiana

Routes recording Pine Warbler in Indiana.
Hoosier920241990
Cumback220191994
Celestine120221983
Clear Spring120152000
New Phila120231983
Corydon120212008
Scottsburg120072007
Belmont120221997

Pine Warbler Population Trend in Other States

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

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