BirdAnalyst
Species · Oklahoma · BBS 2026 Release · 1966–2025

House Sparrow Population Trend in Oklahoma

All statesGeneralists

House Sparrow in Oklahoma has fallen sharply: down 54% on the route-weighted index since 1969.

-54%Since 1969TrendPercent 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 →
65Routes 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 →
58YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable House Sparrow Trends in OklahomaNotable 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 →

House Sparrow has fallen sharply in Oklahoma: down 53% on the route-weighted index since 1969.

House Sparrow Population Forecast in Oklahoma

If the recent trend holds, House Sparrow in Oklahoma is projected to fall about 31% by 2030 — from 17 in 2025 to a central estimate of 12 (95% range 0.45–24). A 5-year backtest shows a typical error of ±25.4%, with 100% of held-out values landing inside the 95% band.

-31%Change by 2030TrendPercent 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 →
12Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.45–2495% 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 →
±25.4%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, House Sparrow in Oklahoma is projected to fall about 31% by 2030 — from 17 in 2025 to a central estimate of 12 (95% range 0.45–24). A 5-year backtest shows a typical error of ±25.4%, with 100% of held-out values landing inside the 95% band.19672030
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 →
2026142.225
2027131.825
2028131.324
2029120.8924
2030120.4524

House Sparrow Survey Routes in Oklahoma

Routes recording House Sparrow in Oklahoma.
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 →
Hooker20720251992
Colony12919951995
Indianola5420251967
Sickles4320211992
Elgin4020161994
Cashion3820241992
Keyes3620241992
Beggs3520231967
Beaver3420181979
Loco3119851967
Welch3120251967
Clear Lake3120251992
Noble3020251967
Hunter3020241992
Wakita2520161967
Pocola2520161992
Mcalester2119911967
Felt2020241968
Hardesty1920241970
Cookietown1820061968
Rosston1820181967
Phillips1720251968
Collinsville1720211967
Heyburn1720251992
Verden1620171967

House Sparrow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.