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

Killdeer Population Trend in Oklahoma

All statesShorebirds

Killdeer in Oklahoma has held roughly steady: down 6% on the route-weighted index since 1969.

-6%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 →
68Routes 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 Killdeer 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 Killdeer in Oklahoma. See the full index history below.

Killdeer Population Forecast in Oklahoma

If the recent trend holds, Killdeer in Oklahoma is projected to rise about 14% by 2029 — from 4.6 in 2024 to a central estimate of 5.3 (95% range 2.5–8.0). A 5-year backtest shows a typical error of ±34.9%, with 100% of held-out values landing inside the 95% band.

+14%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 →
5.3Projected 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 →
2.5–8.095% 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 →
±34.9%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, Killdeer in Oklahoma is projected to rise about 14% by 2029 — from 4.6 in 2024 to a central estimate of 5.3 (95% range 2.5–8.0). A 5-year backtest shows a typical error of ±34.9%, with 100% 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 →
20255.42.68.2
20265.42.68.2
20275.32.58.1
20285.32.58.1
20295.32.58.0

Killdeer Survey Routes in Oklahoma

Routes recording Killdeer 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 →
Ft Sill East2019941994
Beaver1920181979
Colony1819951995
Cooperton1820241992
Hooker1720241992
Wakita1520161967
Wainwright1520131992
Sandbluff1419951992
Cashion1220241992
Hunter1220241992
Hardesty1020241970
Sickles1020211992
Canadian920171967
Welch920241967
Douglas920221967
Rosston920181967
Matoy920001992
Mcalester819911967
Cookietown820061968
Loco719851967
Elgin720161994
Clear Lake720241992
Erick620241969
Peoria620231967
Randlett520241967

Killdeer 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.