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

Eastern Bluebird Population Trend in Iowa

All statesForest birds

Eastern Bluebird in Iowa has edged up: up 13% on the route-weighted index since 1969.

+13%Since 1969
38Routes In State
57Years

Notable Eastern Bluebird Trends in Iowa

No notable trend signals for Eastern Bluebird in Iowa. See the full index history below.

Eastern Bluebird Population Forecast in Iowa

If the recent trend holds, Eastern Bluebird in Iowa is projected to rise about 45% by 2029 — from 1.6 in 2024 to a central estimate of 2.4 (95% range 0.77–4.0). A 5-year backtest shows a typical error of ±220.8%, with 40% of held-out values landing inside the 95% band.

+45%Change by 2029
2.4Projected 2029 index
0.77–4.095% range
±220.8%Backtest error
19672029
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
20252.30.663.9
20262.30.693.9
20272.30.713.9
20282.30.743.9
20292.40.774.0

Eastern Bluebird Survey Routes in Iowa

Routes recording Eastern Bluebird in Iowa.
Mt Hamill1020241967
Washta920141973
Washington820231967
Alice719991967
Melrose620241980
Hudson620131971
Red Rock520241968
Lafayette520242003
College Spgs420041967
Exline320231974
Williamsburg320101968
Maquoketa320241967
Bryant220241968
Zearing219941981
Clare220191984
Titonka220151976
Tipton220131993
Mccallsburg220241997
Bedford120161968
West Liberty120241968
Cedar Valley119971968
Brooklyn120181976
Desmoines119721970
Panther120231984
Neola120161971

Eastern Bluebird Population Trend in Other States

alabamaarizonaarkansascoloradoconnecticutdelawarefloridageorgiaillinoisindianakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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