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Species · Michigan · BBS 2026 Release · 1966–2025

Common Yellowthroat Population Trend in Michigan

All statesForest birds

Common Yellowthroat in Michigan has increased: up 49% on the route-weighted index since 1968.

+49%Since 1968TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
108Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
59YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Common Yellowthroat Trends in MichiganNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Common Yellowthroat in Michigan. See the full index history below.

Common Yellowthroat Population Forecast in Michigan

If the recent trend holds, Common Yellowthroat in Michigan is projected to stay roughly flat through 2030, near 14 (95% range 10–18). A 5-year backtest shows a typical error of ±33%, with 40% of held-out values landing inside the 95% band.

+9%Change by 2030TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
14Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
10–1895% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±33%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Common Yellowthroat in Michigan is projected to stay roughly flat through 2030, near 14 (95% range 10–18). A 5-year backtest shows a typical error of ±33%, with 40% of held-out values landing inside the 95% band.19662030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
2026141017
2027141017
2028141018
2029141018
2030141018

Common Yellowthroat Survey Routes in Michigan

Routes recording Common Yellowthroat in Michigan.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Pickford4320251973
Seney Nwr3520251992
Lapeer3020252000
Drayton Plns2919871973
Hungerford2820251991
Herron2720162011
Nashville2620251968
Brocky Lake2520251980
Cohoctah2420252021
Maple Grove2320251967
Wilson2120101966
Gilchrist2120211974
Scottville2020251969
Lawrence2020251969
Muskallonge2020241966
Big Rapids2019901967
Holt2020251969
Chippewa Lk.2020251992
Almena2020151993
Ned Lake1920251986
Cunard1920211973
Cathro1820161967
Deckerville1820241978
Ontonagon1620191967
Lake City1620221970

Common Yellowthroat Population Trend in Other States

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

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.