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Species · Texas · BBS 2026 Release · 1966–2025

Bewick's Wren Population Trend in Texas

All statesForest birds

Bewick's Wren in Texas has held roughly steady: up 7% on the route-weighted index since 1969.

+7%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 →
181Routes 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 Bewick's Wren 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 Bewick's Wren in Texas. See the full index history below.

Bewick's Wren Population Forecast in Texas

If the recent trend holds, Bewick's Wren in Texas is projected to fall about 23% by 2030 — from 9.7 in 2025 to a central estimate of 7.4 (95% range 3.8–11). A 5-year backtest shows a typical error of ±26.5%, with 100% of held-out values landing inside the 95% band.

-23%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 →
7.4Projected 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 →
3.8–1195% 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 →
±26.5%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, Bewick's Wren in Texas is projected to fall about 23% by 2030 — from 9.7 in 2025 to a central estimate of 7.4 (95% range 3.8–11). A 5-year backtest shows a typical error of ±26.5%, 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 →
20267.33.711
20277.33.711
20287.43.811
20297.43.811
20307.43.811

Bewick's Wren Survey Routes in Texas

Routes recording Bewick's Wren 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 →
Devils R Cyn16620251994
Hondo7620251969
Allen Creek7320251994
Indian Mtn6520251976
George West5420251967
Three Rivers5320251994
Brite5120251994
San Saba4720251969
Rockspring4420251994
Agua Nueva4320231969
Dripping Spg4320251985
Pumpville4320252006
Leakey4220251994
Harper3720251969
Millett 23620242013
El Sauz3520231993
Cavasara Cr.3420251995
Sejita3320241994
Catarina3120101970
Shields 23020252004
Utopia2920251969
Guerra2720251991
Prairie Mtn.2720251994
Pear Valley2620251969
Pidcoke 22620252018

Bewick's Wren Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoidahoillinoisindianaiowakansaskentuckymarylandmississippimissourinevadanew-mexiconorth-carolinaohiooklahomaoregonpennsylvaniatennesseeutahvirginiawashingtonwest-virginiawisconsinwyoming

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