BirdAnalyst
Species · BCR 34 · BBS 2025 Release · 1966–2024

Canyon Wren In Sierra Madre Occidental

All regionsSierra Madre OccidentalForest birds

Canyon Wren in Sierra Madre Occidental has edged down: down 24% on the route-weighted index since 1970.

-24%Since 1970TrendPercent 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 →
27Routes 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 →
56YearsYears 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 Canyon Wren in Sierra Madre Occidental. See the full index history below.

Canyon Wren In Sierra Madre Occidental Population Forecast

If the recent trend holds, Canyon Wren in Sierra Madre Occidental is projected to rise about 14% by 2029 — from 0.61 in 2024 to a central estimate of 0.69 (95% range 0.00–1.6). A 5-year backtest shows a typical error of ±133.5%, with 100% of held-out values landing inside the 95% band.

+14%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 →
0.69Projected 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 →
0.00–1.695% 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 →
±133.5%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, Canyon Wren in Sierra Madre Occidental is projected to rise about 14% by 2029 — from 0.61 in 2024 to a central estimate of 0.69 (95% range 0.00–1.6). A 5-year backtest shows a typical error of ±133.5%, with 100% of held-out values landing inside the 95% band.19682029
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 →
20250.700.001.6
20260.700.001.6
20270.690.001.6
20280.690.001.6
20290.690.001.6

Routes In Sierra Madre Occidental

Routes recording Canyon Wren in Sierra Madre Occidental.
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 →
Forest LakesARIZONA52024
CutterARIZONA32014
DragoonARIZONA32009
ReserveNEW-MEXICO32023
Peña BlancaARIZONA22024
Bartlett ResARIZONA22023
Vicks PeakNEW-MEXICO22024
Emory PassNEW-MEXICO22024
PrescottARIZONA12002
Aztec PeakARIZONA11978
BlueARIZONA11991
San SimonARIZONA12001
PatagoniaARIZONA12023
SunizonaARIZONA11987
Skull ValleyARIZONA12019
Tonto Vill.ARIZONA12019
RedingtonARIZONA12014
Mt. GrahamARIZONA12014
AmadoARIZONA12002
SahuaritaARIZONA12019
McnealARIZONA12022
Carr MtnARIZONA12023
SprucedaleARIZONA12023
PortalARIZONA12021
Sunizona 2ARIZONA12019

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