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Species · Oklahoma · BBS 2025 Release · 1966–2024

Yellow-billed Cuckoo Population Trend in Oklahoma

All statesGeneralists

Yellow-billed Cuckoo in Oklahoma has declined: down 26% on the route-weighted index since 1969.

-26%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 →
70Routes 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 Yellow-billed Cuckoo 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 Yellow-billed Cuckoo in Oklahoma. See the full index history below.

Yellow-billed Cuckoo Population Forecast in Oklahoma

If the recent trend holds, Yellow-billed Cuckoo in Oklahoma is projected to stay roughly flat through 2029, near 7.7 (95% range 3.1–12). A 5-year backtest shows a typical error of ±12.4%, with 100% of held-out values landing inside the 95% band.

+4%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 →
7.7Projected 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 →
3.1–1295% 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 →
±12.4%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, Yellow-billed Cuckoo in Oklahoma is projected to stay roughly flat through 2029, near 7.7 (95% range 3.1–12). A 5-year backtest shows a typical error of ±12.4%, 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 →
20258.23.513
20268.13.413
20278.03.313
20287.93.213
20297.73.112

Yellow-billed Cuckoo Survey Routes in Oklahoma

Routes recording Yellow-billed Cuckoo 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 West4119941994
Noble3020241967
Sandbluff3019951992
Blanco2720161967
Mcalester2619911967
Heyburn2620241992
Wichita Mtns2319941994
Baron2120231967
Beggs2120231967
Colcord2120221992
Ft Sill East2119941994
Skiatook2120191982
Mill Creek2020181967
Matoy2020001992
Ardmore1920091967
Wichita Mtns East1920222004
Pushmataha1920231994
Tatums1820241992
Keetonville1720221992
Phroso1520241991
Pocola1520161992
Hee Mountain1520241999
Ouachita Nf1320241991
Holdenville1220241967
Peoria1220231967

Yellow-billed Cuckoo Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiopennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming

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