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Species · Texas · BBS 2025 Release · 1966–2024

Bewick's Wren Population Trend in Texas

All statesForest birds

Bewick's Wren in Texas has held roughly steady: down 9% on the route-weighted index since 1969.

-9%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 →
180Routes 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 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 12% by 2029 — from 8.2 in 2024 to a central estimate of 7.2 (95% range 3.6–11). A 5-year backtest shows a typical error of ±24.4%, with 100% of held-out values landing inside the 95% band.

-12%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 →
7.2Projected 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 →
3.6–1195% 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 →
±24.4%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 12% by 2029 — from 8.2 in 2024 to a central estimate of 7.2 (95% range 3.6–11). A 5-year backtest shows a typical error of ±24.4%, 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 →
20257.13.511
20267.13.511
20277.23.611
20287.23.611
20297.23.611

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 Cyn9220241994
Hondo9120241969
Indian Mtn7720241976
Allen Creek7420241994
Rockspring4820241994
George West4720241967
Three Rivers4420241994
Agua Nueva4320231969
Guerra4120231991
Leakey4020241994
Pumpville3720242006
Dripping Spg3620241985
Millett 23620242013
El Sauz3520231993
Harper3420241969
San Saba3320241969
Sejita3320241994
Brite3220241994
Catarina3120101970
Montell3020241995
Utopia2920241969
Comstock2920231967
Campbellton2420241969
Duran2419991995
Encinal2320101969

Bewick's Wren Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoidahoillinoisindianaiowakansaskentuckymarylandmississippimissourinevadanew-mexiconorth-carolinaohiooklahomaoregonpennsylvaniatennesseeutahvirginiawashingtonwest-virginiawisconsinwyoming

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