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

Yellow-billed Cuckoo Population Trend in Ohio

All statesGeneralists

Yellow-billed Cuckoo in Ohio has increased: up 31% on the route-weighted index since 1968.

+31%Since 1968TrendPercent 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 →
89Routes 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 Yellow-billed Cuckoo Trends in OhioNotable 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 Ohio. See the full index history below.

Yellow-billed Cuckoo Population Forecast in Ohio

If the recent trend holds, Yellow-billed Cuckoo in Ohio is projected to rise about 27% by 2029 — from 1.5 in 2024 to a central estimate of 1.9 (95% range 0.00–4.1). A 5-year backtest shows a typical error of ±17.2%, with 100% of held-out values landing inside the 95% band.

+27%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 →
1.9Projected 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 →
0.00–4.195% 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 →
±17.2%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 Ohio is projected to rise about 27% by 2029 — from 1.5 in 2024 to a central estimate of 1.9 (95% range 0.00–4.1). A 5-year backtest shows a typical error of ±17.2%, 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 →
20251.90.004.1
20261.90.004.1
20271.90.004.1
20281.90.004.1
20291.90.004.1

Yellow-billed Cuckoo Survey Routes in Ohio

Routes recording Yellow-billed Cuckoo in Ohio.
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 →
Dresden1520241966
Wilgus1020191992
Adamsville719821972
Rome720241966
Darrtown620181966
Greasy Ridge619911966
Birmingham620241988
W Carrollton620041991
Wayne N.F.620241992
Bismark519951967
Meadowbrook520191966
Baxter Ridge520211999
Tecumseh519821966
Shawnee S.F.520001992
Shawnee S.F. 2520192001
Winterset419821967
Cumberland420161966
London420041998
Zaleski S.F.420241992
Tar Hollow420241992
Scioto Trail420131992
Marion320191966
Fulton320211969
Newcomerstwn319951967
Smithfield320221967

Yellow-billed Cuckoo Population Trend in Other States

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

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