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

Blue Grosbeak Population Trend in Ohio

All statesGeneralists

Blue Grosbeak in Ohio has surged: up 15× on the route-weighted index since 1985.

15×Since 1985
16Routes In State
40Years

Notable Blue Grosbeak Trends in Ohio

long arc increasecomputed index

Blue Grosbeak has surged in Ohio: up 15× on the route-weighted index since 1985.

Blue Grosbeak Population Forecast in Ohio

If the recent trend holds, Blue Grosbeak in Ohio is projected to fall about 33% by 2029 — from 0.60 in 2024 to a central estimate of 0.41 (95% range 0.25–0.56). A 5-year backtest shows a typical error of ±27.7%, with 80% of held-out values landing inside the 95% band.

-33%Change by 2029
0.41Projected 2029 index
0.25–0.5695% range
±27.7%Backtest error
19722029
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
20250.370.220.52
20260.380.230.53
20270.390.240.54
20280.400.240.55
20290.410.250.56

Blue Grosbeak Survey Routes in Ohio

Routes recording Blue Grosbeak in Ohio.
Omega1320241972
Rome620241991
Harveysburg 2220242024
Enon220242013
Baxter Ridge220232023
Dresden220222013
Wilgus220091997
Ash Ridge220211992
Scioto Furn220132008
Kenton119911991
Kunkle120172017
Tar Hollow120182018
Bismark119861985
Botkins120142014
Darrtown120212018
Harveysburg119891989

Blue Grosbeak Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradodelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamarylandminnesotamississippimissourimontananebraskanevadanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomapennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvirginiawest-virginiawyoming

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