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

Eastern Screech-Owl Population Trend in Alabama

All statesGeneralists

Eastern Screech-Owl in Alabama has fallen sharply: down 59% on the route-weighted index since 1970.

-59%Since 1970TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
45Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
38YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Eastern Screech-Owl Trends in AlabamaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Eastern Screech-Owl has fallen sharply in Alabama: down 59% on the route-weighted index since 1970.

Eastern Screech-Owl Population Forecast in Alabama

If the recent trend holds, Eastern Screech-Owl in Alabama is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±86.1%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
0.00Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.0795% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±86.1%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Eastern Screech-Owl in Alabama is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±86.1%, with 100% of held-out values landing inside the 95% band.19662029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20250.010.000.08
20260.010.000.08
20270.010.000.08
20280.010.000.08
20290.000.000.07

Eastern Screech-Owl Survey Routes in Alabama

Routes recording Eastern Screech-Owl in Alabama.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Trade219841984
Hillsboro119961996
Summitt119761967
Valhermoso Spgs119751975
Swaim120061983
Sunny Eve119751975
Greensport120211989
Smyer Lake119951995
Elberta120002000
Howard119771966
Maytown119661966
Liberty120182018
Harrell120181979
Greensboro119741974
Sprague119991999
Billingsley119781978
Warrior Std120162016
Cottonton120211980
Grangeburg120011977
Brundidge119901990
Brantley120042004
South119921992
Mclellan119991983
Beatrice120071975
Latham119821967

Eastern Screech-Owl Population Trend in Other States

arkansascoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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