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

Song Sparrow Population Trend in Arizona

All statesGeneralists

Song Sparrow in Arizona has surged: up 131% on the route-weighted index since 1972.

+131%Since 1972
29Routes In State
48Years

Notable Song Sparrow Trends in Arizona

long arc increasecomputed index

Song Sparrow has surged in Arizona: up 131% on the route-weighted index since 1972.

Song Sparrow Population Forecast in Arizona

If the recent trend holds, Song Sparrow in Arizona is projected to rise about 50% by 2029 — from 0.29 in 2024 to a central estimate of 0.43 (95% range 0.15–0.71). A 5-year backtest shows a typical error of ±120%, with 60% of held-out values landing inside the 95% band.

+50%Change by 2029
0.43Projected 2029 index
0.15–0.7195% range
±120%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
20250.410.130.69
20260.420.130.70
20270.420.140.70
20280.420.140.71
20290.430.150.71

Song Sparrow Survey Routes in Arizona

Routes recording Song Sparrow in Arizona.
Red Rock 2520162015
Coolidge419751974
Riviera420242004
Cibola Lake420191994
Florence319881988
Dateland320161998
Cutter320142014
Carr Mtn320241991
Laguna220231968
Cutter 2220182015
Araby220221992
The Gap119701970
Round Rock119721968
Blue119871985
Pomerene120241994
Patagonia120241979
Palo Verde 2120242014
Maine120031997
Skull Valley120152014
Tonto Vill.120192016
Palo Verde120131994
Red Rock120141998
Redington120171994
Hope 2120182016
Kaibito120222003

Song Sparrow Population Trend in Other States

alabamaalaskaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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