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Species · Nebraska · BBS 2026 Release · 1966–2025

Yellow-billed Cuckoo Population Trend in Nebraska

All statesForest birds

Yellow-billed Cuckoo in Nebraska has declined: down 32% on the route-weighted index since 1969.

-32%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 →
55Routes 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 NebraskaNotable 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 Nebraska. See the full index history below.

Yellow-billed Cuckoo Population Forecast in Nebraska

If the recent trend holds, Yellow-billed Cuckoo in Nebraska is projected to stay roughly flat through 2030, near 0.41 (95% range 0.00–1.3). A 5-year backtest shows a typical error of ±41.8%, with 100% of held-out values landing inside the 95% band.

+3%Change by 2030TrendPercent 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 →
0.41Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–1.395% 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 →
±41.8%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 Nebraska is projected to stay roughly flat through 2030, near 0.41 (95% range 0.00–1.3). A 5-year backtest shows a typical error of ±41.8%, with 100% of held-out values landing inside the 95% band.19672030
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 →
20260.470.001.4
20270.460.001.3
20280.440.001.3
20290.430.001.3
20300.410.001.3

Yellow-billed Cuckoo Survey Routes in Nebraska

Routes recording Yellow-billed Cuckoo in Nebraska.
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 →
Liberty 21220072004
Liberty620031967
Thurston620181969
Humboldt520252018
Liberty 3520252009
Bartlett419721968
Sparta420211976
Belvidere320251970
Almeria319921969
Tilden320192019
Johnson220251967
Irvington220211967
Paxton220111968
Winside219991969
Midway220231976
Bassett220242019
Ponca220252025
Hampton220222019
Wheeler Co219841979
Julian120221969
Seward120121967
Kenesaw119891980
Kearney120191971
Sumner119911967
Holbrook120211973

Yellow-billed Cuckoo Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.