BirdAnalyst
Species · Arizona · BBS 2025 Release · 1966–2024

Western Bluebird Population Trend in Arizona

All statesForest birds

Western Bluebird in Arizona has held roughly steady: up 9% on the route-weighted index since 1970.

+9%Since 1970
40Routes In State
56Years

Notable Western Bluebird Trends in Arizona

No notable trend signals for Western Bluebird in Arizona. See the full index history below.

Western Bluebird Population Forecast in Arizona

If the recent trend holds, Western Bluebird in Arizona is projected to rise about 25% by 2029 — from 2.2 in 2024 to a central estimate of 2.8 (95% range 1.1–4.5). A 5-year backtest shows a typical error of ±65.7%, with 80% of held-out values landing inside the 95% band.

+25%Change by 2029
2.8Projected 2029 index
1.1–4.595% range
±65.7%Backtest error
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 index95% low95% high
20252.70.984.4
20262.71.04.5
20272.71.04.5
20282.81.04.5
20292.81.14.5

Western Bluebird Survey Routes in Arizona

Routes recording Western Bluebird in Arizona.
Happy Jack5320241977
Sawmill3320141988
The Gap2719761976
Tonto Vill.2020211992
Pinetop1820221993
Sprucedale1820231992
Aztec Peak1619781974
Williams1220191993
Forest Lakes1220241992
Tsaile1120231993
Maine820241992
Flagstaff720221988
Mormon Lake719751968
Cow Springs720221992
Blue619911974
Skull Valley620221997
Black Mesa419951988
Patagonia419971997
Alpine420231992
Hunt320171976
Dry Park320241992
Page320191995
Castle Butte320051993
Mt Trumbull219931980
House Rock220221968

Western Bluebird Population Trend in Other States

californiacoloradoidahomontananevadanew-mexicooregontexasutahwashingtonwyoming

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