BirdAnalyst
Species · Michigan · BBS 2026 Release · 1966–2025

Red-eyed Vireo Population Trend in Michigan

All statesForest birds

Red-eyed Vireo in Michigan has surged: up 199% on the route-weighted index since 1968.

+199%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 Red-eyed Vireo 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 →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Red-eyed Vireo has surged in Michigan: up 199% on the route-weighted index since 1968.

Red-eyed Vireo Population Forecast in Michigan

If the recent trend holds, Red-eyed Vireo in Michigan is projected to stay roughly flat through 2030, near 31 (95% range 26–36). A 5-year backtest shows a typical error of ±3.3%, with 100% of held-out values landing inside the 95% band.

+7%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 →
31Projected 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 →
26–3695% 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 →
±3.3%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, Red-eyed Vireo in Michigan is projected to stay roughly flat through 2030, near 31 (95% range 26–36). A 5-year backtest shows a typical error of ±3.3%, with 100% 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 →
2026292434
2027302535
2028302535
2029302535
2030312636

Red-eyed Vireo Survey Routes in Michigan

Routes recording Red-eyed Vireo 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 →
Ned Lake11320251986
Crystal Fls11220251979
Scottville8120251968
Sidnaw7720251993
Big Island Lake7520102008
Herman6720221983
Imp Lake6620191992
Bootjack6520231967
Creighton6320251978
Bergland6120221979
Gooseneck5820102008
Brocky Lake5720251980
Maple Grove5520251967
Tahquamenon5320251974
Ontonagon5120191967
Cunard5120211973
Muskallonge5120241966
Harrietta5120251990
Gibbs City4820251979
Riggsville4420191967
Isabella 24420252013
Gilchrist4320211974
Pickford4320251973
Ishpeming4220251980
Wilson3920101966

Red-eyed Vireo Population Trend in Other States

alabamaalaskaarkansascoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawashingtonwest-virginiawisconsinwyoming

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