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

Yellow-billed Cuckoo Population Trend in Texas

All statesGeneralists

Yellow-billed Cuckoo in Texas has declined: down 49% on the route-weighted index since 1969.

-49%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 →
216Routes 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 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 52% by 2029 — from 5.7 in 2024 to a central estimate of 2.7 (95% range 0.00–5.5). A 5-year backtest shows a typical error of ±27.3%, with 80% of held-out values landing inside the 95% band.

-52%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 →
2.7Projected 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 →
0.00–5.595% 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 →
±27.3%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 52% by 2029 — from 5.7 in 2024 to a central estimate of 2.7 (95% range 0.00–5.5). A 5-year backtest shows a typical error of ±27.3%, with 80% 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 →
20253.20.436.0
20263.10.315.9
20273.00.185.8
20282.90.065.7
20292.70.005.5

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 →
Albany2420241969
Mcfaddin2320162006
Fitzhugh2019831969
Caledonia2020241969
Union Hill2020241994
Big Sandy Bith2020242015
Crossroads1920241967
Three Rivers1920241994
Smyrna1820101995
Kingsville1720241967
E Georgetown1719791967
Bon Wier1720241996
Boerne1620241967
Fred1620241995
Burton1620241996
Mt. Selman1620241998
Hondo1520241969
Town Bluff1520241967
Morton1520241970
Bonner1520241997
Goliad Prairie1520162004
Thornton 21420101985
Yoakum1420241994
San Saba1320241969
Cayuga1320242001

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 2026-05-22.