BirdAnalyst
Species · BCR 19 · BBS 2026 Release · 1966–2025

Bewick's Wren In Central Mixed Grass Prairie

All regionsCentral Mixed Grass PrairieForest birds

Bewick's Wren in Central Mixed Grass Prairie has edged up: up 24% on the route-weighted index since 1969.

+24%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 →
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 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 14% by 2030 — from 2.2 in 2025 to a central estimate of 2.5 (95% range 0.66–4.4). A 5-year backtest shows a typical error of ±106.3%, with 80% of held-out values landing inside the 95% band.

+14%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 →
2.5Projected 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 →
0.66–4.495% 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 →
±106.3%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, Bewick's Wren in Central Mixed Grass Prairie is projected to rise about 14% by 2030 — from 2.2 in 2025 to a central estimate of 2.5 (95% range 0.66–4.4). A 5-year backtest shows a typical error of ±106.3%, with 80% 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 →
20262.50.634.4
20272.50.644.4
20282.50.644.4
20292.50.654.4
20302.50.664.4

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 →
Shields 2TEXAS302025
Pear ValleyTEXAS262025
SilverTEXAS242025
EldoradoTEXAS222023
ColonyOKLAHOMA151995
WinchellTEXAS152025
ClarendonTEXAS122024
PhrosoOKLAHOMA112025
MertzonTEXAS112019
WeinertTEXAS81994
Mertzon 2TEXAS82025
HawleyTEXAS82025
ShieldsTEXAS72001
ErickOKLAHOMA62024
HollisOKLAHOMA62025
Wichita Mtns EastOKLAHOMA62025
RosstonOKLAHOMA52018
GrimesOKLAHOMA42025
WoodwardOKLAHOMA42025
Wichita Mts WestOKLAHOMA42025
Wichita MtnsOKLAHOMA41994
GirardTEXAS42025
DouglasOKLAHOMA31998
SicklesOKLAHOMA32018
HackberryTEXAS32024

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