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

Chipping Sparrow Population Trend in Oklahoma

All statesGeneralists

Chipping Sparrow in Oklahoma has held roughly steady: down 0% on the route-weighted index since 1969.

-0%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 →
35Routes 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 →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Chipping 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 →

No notable trend signals for Chipping Sparrow in Oklahoma. See the full index history below.

Chipping Sparrow Population Forecast in Oklahoma

If the recent trend holds, Chipping Sparrow in Oklahoma is projected to rise about 284% by 2029 — from 0.41 in 2024 to a central estimate of 1.6 (95% range 0.63–2.6). A 5-year backtest shows a typical error of ±167.3%, with 20% of held-out values landing inside the 95% band.

+284%Change 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 →
1.6Projected 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 →
0.63–2.695% 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 →
±167.3%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, Chipping Sparrow in Oklahoma is projected to rise about 284% by 2029 — from 0.41 in 2024 to a central estimate of 1.6 (95% range 0.63–2.6). A 5-year backtest shows a typical error of ±167.3%, with 20% of held-out values landing inside the 95% band.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 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 →
20251.50.562.5
20261.50.582.5
20271.60.592.5
20281.60.612.5
20291.60.632.6

Chipping Sparrow Survey Routes in Oklahoma

Routes recording Chipping 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 →
Felt1120151972
Blanco920161967
Pushmataha820231994
Baron620231968
Goodwater620211992
Colcord520221992
Hee Mountain420242001
Sandbluff319941994
Pocola320161994
Ouachita Nf220241991
Randlett219911991
Mt. Herman220221999
Canadian220001984
Wichita Mts West220162004
Wichita Mtns219941994
Peoria220182003
Barnsdall219671967
Bethel220241993
Jet220242024
Duncan219911990
Big Cedar120241967
Phroso120142014
Wichita Mtns East120152007
Beggs120091983
Noble120081967

Chipping 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 2026-05-22.