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

Evening Grosbeak Population Trend in Michigan

All statesGeneralists

Evening Grosbeak in Michigan has fallen sharply: down 73% on the route-weighted index since 1968.

-73%Since 1968
38Routes In State
55Years

Notable Evening Grosbeak Trends in Michigan

long arc declinecomputed index

Evening Grosbeak has fallen sharply in Michigan: down 73% on the route-weighted index since 1968.

Evening Grosbeak Population Forecast in Michigan

If the recent trend holds, Evening Grosbeak in Michigan is projected to rise about 174% by 2026 — from 0.07 in 2021 to a central estimate of 0.19 (95% range 0.00–1.6). A 5-year backtest shows a typical error of ±305.8%, with 100% of held-out values landing inside the 95% band.

+174%Change by 2026
0.19Projected 2026 index
0.00–1.695% range
±305.8%Backtest error
19662026
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
20220.250.001.6
20230.230.001.6
20240.220.001.6
20250.210.001.6
20260.190.001.6

Evening Grosbeak Survey Routes in Michigan

Routes recording Evening Grosbeak in Michigan.
Herman2019971984
Gilchrist1020011979
Pine River819931992
Muskallonge620091966
Ontonagon420141971
Red Oak420111985
Bergland320181979
Betchler Lks320081992
Bootjack220211968
Ned Lake220161986
Brocky Lake220151980
Cunard220051979
Creighton220091978
Seney Nwr220011997
Sidnaw220191993
Scott'S Marsh220102010
Cluster Lakes220102006
Tahquamenon220061974
Skegemog Pt220002000
Frederic219991999
Imp Lake220171992
Hiawatha Nf220171992
Marenisco120191981
Crystal Fls119881980
Gibbs City120211979

Evening Grosbeak Population Trend in Other States

arizonacaliforniacoloradoconnecticutidahomainemassachusettsminnesotamontananevadanew-hampshirenew-mexiconew-yorkoregonsouth-dakotautahvermontwashingtonwisconsinwyoming

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