BirdAnalyst
Species · BCR 33 · BBS 2025 Release · 1966–2024

Canyon Towhee In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsGeneralists

Canyon Towhee in Sonoran and Mojave Deserts has declined: down 32% on the route-weighted index since 1970.

-32%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 →
16Routes 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 →
42YearsYears 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 Towhee in Sonoran and Mojave Deserts. See the full index history below.

Forecast

If the recent trend holds, Canyon Towhee in Sonoran and Mojave Deserts is projected to stay roughly flat through 2029, near 0.24 (95% range 0.00–0.58). A 5-year backtest shows a typical error of ±19.2%, with 100% of held-out values landing inside the 95% band.

+1%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 →
0.24Projected 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 →
0.00–0.5895% 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 →
±19.2%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 Towhee in Sonoran and Mojave Deserts is projected to stay roughly flat through 2029, near 0.24 (95% range 0.00–0.58). A 5-year backtest shows a typical error of ±19.2%, 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 →
20250.240.000.59
20260.240.000.58
20270.240.000.58
20280.240.000.58
20290.240.000.58

Routes In Sonoran and Mojave Deserts

Routes recording Canyon Towhee in Sonoran and Mojave Deserts.
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 →
PisinimoARIZONA111993
Casa GrandeARIZONA82022
WikieupARIZONA62015
FlorenceARIZONA61972
Cutter 2ARIZONA62018
WickenburgARIZONA42023
Red Rock 2ARIZONA42024
AjoARIZONA32006
RivieraARIZONA22024
LukevilleARIZONA11979
Gila BendARIZONA12000
Red RockARIZONA12010
Cabeza PrietARIZONA12024
Willow BeachARIZONA11993
Organ PipeARIZONA12023
Bates WellARIZONA12016

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