BirdAnalyst
Species · Texas · BBS 2026 Release · 1966–2025

Greater Roadrunner Population Trend in Texas

All statesArid-land birds

Greater Roadrunner in Texas has edged up: up 15% on the route-weighted index since 1969.

+15%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 →
210Routes 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 Greater Roadrunner 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 Greater Roadrunner in Texas. See the full index history below.

Greater Roadrunner Population Forecast in Texas

If the recent trend holds, Greater Roadrunner in Texas is projected to stay roughly flat through 2030, near 1.3 (95% range 0.71–1.9). A 5-year backtest shows a typical error of ±78.3%, with 60% of held-out values landing inside the 95% band.

+5%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 →
1.3Projected 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 →
0.71–1.995% 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 →
±78.3%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, Greater Roadrunner in Texas is projected to stay roughly flat through 2030, near 1.3 (95% range 0.71–1.9). A 5-year backtest shows a typical error of ±78.3%, with 60% 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 →
20261.30.681.9
20271.30.691.9
20281.30.701.9
20291.30.711.9
20301.30.711.9

Greater Roadrunner Survey Routes in Texas

Routes recording Greater Roadrunner 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 →
Pedro Creek2020051998
Three Rivers1520251994
El Sauz1320231993
Devils R Cyn1320251994
Comstock1120171967
Catarina920101970
San Pedro920251996
Toyahvale820251996
Agua Nueva720231969
Zapata719871967
Mirando City720251969
Girard720181994
Dove Mtn.720042004
Loyola Beach 2720252010
Shields 2720252004
George West620251967
Encinal 2620252011
Catarina 3620252018
Pecos620172017
Randado520251967
La Pryor520101970
Delaware Crk520151972
Raymondville520251972
Eldorado520231986
Dilley520252018

Greater Roadrunner Population Trend in Other States

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