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

Tree Swallow Population Trend in Alabama

All statesAerial insectivores

Tree Swallow in Alabama has surged: up 300% on the route-weighted index since 1996.

+300%Since 1996
37Routes In State
26Years

Notable Tree Swallow Trends in Alabama

long arc increasecomputed index

Tree Swallow has surged in Alabama: up 300% on the route-weighted index since 1996.

Tree Swallow Population Forecast in Alabama

If the recent trend holds, Tree Swallow in Alabama is projected to rise about 13% by 2029 — from 0.33 in 2024 to a central estimate of 0.38 (95% range 0.08–0.67). A 5-year backtest shows a typical error of ±16.5%, with 100% of held-out values landing inside the 95% band.

+13%Change by 2029
0.38Projected 2029 index
0.08–0.6795% range
±16.5%Backtest error
19942029
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
20250.340.050.64
20260.350.060.64
20270.360.070.65
20280.370.080.66
20290.380.080.67

Tree Swallow Survey Routes in Alabama

Routes recording Tree Swallow in Alabama.
Guntersville1920172012
Riverside820132004
Wheeler Dam720231996
Drummond420242021
St Florian320242015
Elkmont320182010
Lakeview320242016
Swaim220171996
Greensport220242017
Whitehall220092008
Carrollton219961996
Odenville220232009
Woodville220242015
Talladega220221996
Gastonburg220162016
Triana220122012
Trade120231995
Valhermoso Spgs120081999
Pine Grove120242018
Dawson119951995
Mt Olive120242021
Maytown120231994
Greensboro120212021
Kymulga120242019
Borden Springs 2120132005

Tree Swallow Population Trend in Other States

alaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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