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

Canyon Wren Population Trend in Idaho

All statesForest birds

Canyon Wren in Idaho has declined: down 35% on the route-weighted index since 1986.

-35%Since 1986TrendPercent 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 →
13Routes 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 →
35YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Canyon Wren Trends in IdahoNotable 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 Canyon Wren in Idaho. See the full index history below.

Canyon Wren Population Forecast in Idaho

If the recent trend holds, Canyon Wren in Idaho is projected to fall about 61% by 2030 — from 0.26 in 2025 to a central estimate of 0.10 (95% range 0.00–0.38). A 5-year backtest shows a typical error of ±79.4%, with 100% of held-out values landing inside the 95% band.

-61%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 →
0.10Projected 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 →
0.00–0.3895% 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 →
±79.4%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, Canyon Wren in Idaho is projected to fall about 61% by 2030 — from 0.26 in 2025 to a central estimate of 0.10 (95% range 0.00–0.38). A 5-year backtest shows a typical error of ±79.4%, with 100% of held-out values landing inside the 95% band.19692030
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 →
20260.110.000.39
20270.110.000.39
20280.100.000.38
20290.100.000.38
20300.100.000.38

Canyon Wren Survey Routes in Idaho

Routes recording Canyon Wren in Idaho.
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 →
Alturas619691969
Almo320251988
Salmon River320251988
Centerville220052005
Magic Mtn220251990
Gifford120171986
Silver City120032003
Twin Buttes120252025
Challis120221977
Leadore120212021
Triangle120212021
Pasadena Val120061996
Dougal Res120152015

Canyon Wren Population Trend in Other States

arizonacaliforniacoloradomontananevadanew-mexicooklahomaoregonsouth-dakotatexasutahwashingtonwyoming

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