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

Blue Grosbeak Population Trend in Utah

All statesGeneralists

Blue Grosbeak in Utah has increased: up 26% on the route-weighted index since 1979.

+26%Since 1979
40Routes In State
47Years

Notable Blue Grosbeak Trends in Utah

No notable trend signals for Blue Grosbeak in Utah. See the full index history below.

Blue Grosbeak Population Forecast in Utah

If the recent trend holds, Blue Grosbeak in Utah is projected to fall about 57% by 2029 — from 0.54 in 2024 to a central estimate of 0.23 (95% range 0.00–0.95). A 5-year backtest shows a typical error of ±53%, with 100% of held-out values landing inside the 95% band.

-57%Change by 2029
0.23Projected 2029 index
0.00–0.9595% range
±53%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
20250.270.000.98
20260.260.000.98
20270.250.000.97
20280.240.000.96
20290.230.000.95

Blue Grosbeak Survey Routes in Utah

Routes recording Blue Grosbeak in Utah.
Aneth1220241986
Castleton519851977
Oak City420241972
Moquith Mtn420242005
Goshen320241982
Bullfrog Bay320082008
Book Ridge220222019
Iron Springs220011988
Vernal220072003
Westwater220241997
Moab220241986
Jensen220241999
Wellington 3120232012
Timpie Spg119831979
Arches Np119921992
Dragerton120102009
Beaver120001986
Canyonlands119941994
Hanksville120182001
Boulder120031986
Hite120132013
Wellington 2120112005
Moon Lake120022002
Castle Dale120242024
Gooseberry119941994

Blue Grosbeak Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradodelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamarylandminnesotamississippimissourimontananebraskanevadanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniasouth-carolinasouth-dakotatennesseetexasvirginiawest-virginiawyoming

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