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

Yellow-billed Cuckoo Population Trend in Arkansas

All statesGeneralists

Yellow-billed Cuckoo in Arkansas has edged down: down 21% on the route-weighted index since 1969.

-21%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 →
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 →
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 ArkansasNotable 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 Arkansas. See the full index history below.

Yellow-billed Cuckoo Population Forecast in Arkansas

If the recent trend holds, Yellow-billed Cuckoo in Arkansas is projected to fall about 23% by 2029 — from 9.0 in 2024 to a central estimate of 6.9 (95% range 1.1–13). A 5-year backtest shows a typical error of ±20%, with 100% of held-out values landing inside the 95% band.

-23%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 →
6.9Projected 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 →
1.1–1395% 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 →
±20%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 Arkansas is projected to fall about 23% by 2029 — from 9.0 in 2024 to a central estimate of 6.9 (95% range 1.1–13). A 5-year backtest shows a typical error of ±20%, 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 →
20257.31.513
20267.21.413
20277.11.313
20287.01.213
20296.91.113

Yellow-billed Cuckoo Survey Routes in Arkansas

Routes recording Yellow-billed Cuckoo in Arkansas.
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 →
South Bend3420231967
Nance3420241992
Lockesburg2720192010
Kelso2520162010
Crows2419911967
Ravenden Springs2220152010
Blakely1819991968
Maynard1720241967
Crowley'S Ridge1720242011
Hughes1620231967
Yellville1620222010
Dry Fork 21620242024
Saffell1520191967
Lurton1520231969
Eudora1420241967
Princeton 21420222022
Stamps1320241967
England1320242010
Hatfield 21320242017
Sims1220242010
Gillett1220242010
Waldron1120241967
Ashdown1020231967
Four Lakes1020011994
Dry Fork1020232000

Yellow-billed Cuckoo Population Trend in Other States

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

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