BirdAnalyst
Species · West Virginia · BBS 2025 Release · 1966–2024

Yellow-billed Cuckoo Population Trend in West Virginia

All statesGeneralists

Yellow-billed Cuckoo in West Virginia has declined: down 44% on the route-weighted index since 1968.

-44%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 →
62Routes 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 West VirginiaNotable 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 West Virginia. See the full index history below.

Yellow-billed Cuckoo Population Forecast in West Virginia

If the recent trend holds, Yellow-billed Cuckoo in West Virginia is projected to rise about 188% by 2029 — from 0.68 in 2024 to a central estimate of 1.9 (95% range 0.10–3.8). A 5-year backtest shows a typical error of ±85.1%, with 100% of held-out values landing inside the 95% band.

+188%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 →
0.10–3.895% 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 →
±85.1%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 West Virginia is projected to rise about 188% by 2029 — from 0.68 in 2024 to a central estimate of 1.9 (95% range 0.10–3.8). A 5-year backtest shows a typical error of ±85.1%, 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 →
20252.00.143.8
20262.00.133.8
20272.00.123.8
20282.00.113.8
20291.90.103.8

Yellow-billed Cuckoo Survey Routes in West Virginia

Routes recording Yellow-billed Cuckoo in West Virginia.
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 →
Welch1120211980
Lost River1120211996
Shanghai1020221995
Arlee819791967
Washburn820151974
Sleepy Creek719901967
Meadowville520231972
Rio519951974
Strange Crk420231982
Monongah420221968
Mcdonald420231987
Ghent320211978
Paradise320191967
Josephs Mill320241995
Greer320231969
Albright319721968
Clinton320191966
Ruthbelle320231977
Hix220241971
Pedro220221979
Stollings220211986
Breeden220241986
Spencer220231986
Yawkey220231966
Olcott220241966

Yellow-billed Cuckoo Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawisconsinwyoming

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