BirdAnalyst
Species · BCR 19 · BBS 2025 Release · 1966–2024

Bewick's Wren In Central Mixed Grass Prairie

All regionsCentral Mixed Grass PrairieForest birds

Bewick's Wren in Central Mixed Grass Prairie has held roughly steady: up 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 →
64Routes In RegionSurvey 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 SignalsNotable 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 Central Mixed Grass Prairie. See the full index history below.

Bewick's Wren In Central Mixed Grass Prairie Population Forecast

If the recent trend holds, Bewick's Wren in Central Mixed Grass Prairie is projected to rise about 58% by 2029 — from 1.6 in 2024 to a central estimate of 2.5 (95% range 0.66–4.4). A 5-year backtest shows a typical error of ±100.5%, with 80% of held-out values landing inside the 95% band.

+58%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 →
2.5Projected 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 →
0.66–4.495% 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 →
±100.5%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 Central Mixed Grass Prairie is projected to rise about 58% by 2029 — from 1.6 in 2024 to a central estimate of 2.5 (95% range 0.66–4.4). A 5-year backtest shows a typical error of ±100.5%, 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 →
20252.50.624.4
20262.50.634.4
20272.50.644.4
20282.50.654.4
20292.50.664.4

Routes In Central Mixed Grass Prairie

Routes recording Bewick's Wren in Central Mixed Grass Prairie.
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 →
EldoradoTEXAS222023
Pear ValleyTEXAS212024
Shields 2TEXAS202023
WinchellTEXAS182024
ColonyOKLAHOMA151995
SilverTEXAS132024
ClarendonTEXAS122024
MertzonTEXAS112019
WeinertTEXAS81994
PhrosoOKLAHOMA72024
ShieldsTEXAS72001
ErickOKLAHOMA62024
GirardTEXAS62023
RosstonOKLAHOMA52018
WoodwardOKLAHOMA52024
Wichita Mtns EastOKLAHOMA42022
Wichita MtnsOKLAHOMA41994
HaskellTEXAS42024
Mertzon 2TEXAS42024
GrimesOKLAHOMA32024
DouglasOKLAHOMA31998
SicklesOKLAHOMA32018
HackberryTEXAS32024
WallTEXAS32019
HawleyTEXAS32024

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