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

Common Yellowthroat Population Trend in Michigan

All statesForest birds

Common Yellowthroat in Michigan has increased: up 37% on the route-weighted index since 1968.

+37%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 →
58YearsYears 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 rise about 16% by 2029 — from 12 in 2024 to a central estimate of 14 (95% range 10–18). A 5-year backtest shows a typical error of ±35.8%, with 40% of held-out values landing inside the 95% band.

+16%Change by 2029TrendPercent 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 2029 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 →
±35.8%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 rise about 16% by 2029 — from 12 in 2024 to a central estimate of 14 (95% range 10–18). A 5-year backtest shows a typical error of ±35.8%, with 40% of held-out values landing inside the 95% band.19662029
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 →
2025141017
2026141018
2027141018
2028141018
2029141018

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 →
Pickford6020241973
Hungerford3020241991
Drayton Plns2919871973
Maple Grove2720241967
Herron2720162011
Chippewa Lk.2620241992
Seney Nwr2520241992
Wilson2120101966
Gilchrist2120211974
Brocky Lake2020241980
Lawrence2020241969
Muskallonge2020241966
Big Rapids2019901967
Almena2020151993
Cunard1920211973
Nashville1920241968
Raco1920241971
Cathro1820161967
Deckerville1820241978
Ontonagon1620191967
Lake City1620221970
Prattville1620211967
Pettysville1619791969
Marenisco1520191981
Crystal Fls1520241980

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 2026-05-22.