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

American Robin Population Trend in Arizona

All statesForest birds

American Robin in Arizona has surged: up 276% on the route-weighted index since 1970.

+276%Since 1970
37Routes In State
56Years

Notable American Robin Trends in Arizona

long arc increasecomputed index

American Robin has surged in Arizona: up 276% on the route-weighted index since 1970.

American Robin Population Forecast in Arizona

If the recent trend holds, American Robin in Arizona is projected to rise about 70% by 2029 — from 3.8 in 2024 to a central estimate of 6.5 (95% range 2.4–11). A 5-year backtest shows a typical error of ±47.7%, with 100% of held-out values landing inside the 95% band.

+70%Change by 2029
6.5Projected 2029 index
2.4–1195% range
±47.7%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
20256.32.210
20266.42.210
20276.42.311
20286.42.311
20296.52.411

American Robin Survey Routes in Arizona

Routes recording American Robin in Arizona.
Happy Jack8820241977
Alpine8120231992
Tsaile6720231993
Sprucedale5520231992
Blue3419911974
Flagstaff2620221988
Mt. Graham2520231995
Pinetop2320221993
Sawmill1920141988
Dry Park1920241992
Williams1720191993
Mormon Lake1219751968
Maine1120241992
Tonto Vill.1020211992
Prescott920221974
Aztec Peak919781974
Portal820241975
Sunizona619971970
Rucker520091993
Cow Springs420221995
Skull Valley420242001
Round Rock319721968
Page320182006
House Rock220151976
Black Mesa219921988

American Robin Population Trend in Other States

alabamaalaskaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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