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Species · Texas · BBS 2026 Release · 1966–2025

Yellow-billed Cuckoo Population Trend in Texas

All statesForest birds

Yellow-billed Cuckoo in Texas has declined: down 47% on the route-weighted index since 1969.

-47%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 →
219Routes 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 TexasNotable 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 Texas. See the full index history below.

Yellow-billed Cuckoo Population Forecast in Texas

If the recent trend holds, Yellow-billed Cuckoo in Texas is projected to fall about 37% by 2030 — from 4.3 in 2025 to a central estimate of 2.7 (95% range 0.00–5.5). A 5-year backtest shows a typical error of ±32.8%, with 80% of held-out values landing inside the 95% band.

-37%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 →
2.7Projected 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 →
0.00–5.595% 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 →
±32.8%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 Texas is projected to fall about 37% by 2030 — from 4.3 in 2025 to a central estimate of 2.7 (95% range 0.00–5.5). A 5-year backtest shows a typical error of ±32.8%, with 80% 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 →
20263.20.406.0
20273.10.285.9
20282.90.155.7
20292.80.035.6
20302.70.005.5

Yellow-billed Cuckoo Survey Routes in Texas

Routes recording Yellow-billed Cuckoo in Texas.
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 →
Mcfaddin2320162006
Lydia2120251967
Fred2120251995
Fitzhugh2019831969
Union Hill2020241994
Big Sandy Bith2020242015
Hondo1920251969
Paige1920252015
Loyola Beach 21920252010
Three Rivers1820251994
Smyrna1820101995
Kingsville1720241967
E Georgetown1719791967
Albany1720251969
Selden1620251968
Pidcoke 21520252018
Goliad Prairie1520162004
Thornton 21420101985
George West1320251967
Harper1320251969
Caledonia1320251969
Shields1320011999
Easton 21320252014
Sejita1220241995
Oak Grove1119991967

Yellow-billed Cuckoo Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseeutahvermontvirginiawest-virginiawisconsinwyoming

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