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

Tufted Titmouse Population Trend in Michigan

All statesForest birds

Tufted Titmouse in Michigan has surged: up 337% on the route-weighted index since 1968.

+337%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 →
71Routes 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 Tufted Titmouse 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 →

Tufted Titmouse has surged in Michigan: up 337% on the route-weighted index since 1968.

Tufted Titmouse Population Forecast in Michigan

If the recent trend holds, Tufted Titmouse in Michigan is projected to fall about 15% by 2030 — from 6.9 in 2025 to a central estimate of 5.9 (95% range 3.7–8.1). A 5-year backtest shows a typical error of ±18.4%, with 100% of held-out values landing inside the 95% band.

-15%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 →
5.9Projected 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 →
3.7–8.195% 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 →
±18.4%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, Tufted Titmouse in Michigan is projected to fall about 15% by 2030 — from 6.9 in 2025 to a central estimate of 5.9 (95% range 3.7–8.1). A 5-year backtest shows a typical error of ±18.4%, 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 →
20265.63.47.8
20275.73.57.8
20285.73.57.9
20295.83.68.0
20305.93.78.1

Tufted Titmouse Survey Routes in Michigan

Routes recording Tufted Titmouse 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 →
Scottville2920251975
Galesburg2820251966
Nashville2520251968
Howardsville2520251969
Rochester2120251993
Cohoctah1820252021
Belding 21620252004
Barry S.G.A.1420121995
Hamburg 21320252004
Monterey1220251978
Lapeer1220252000
Belding1120031983
Chippewa Lk.1020251994
Big Blue Lk1020251979
Barry S.G.A. 21020192013
Almena920151993
Mottville920251967
Prattville920211967
Bravo820231974
Remus820251975
No Bradley820251988
Pettysville819791969
Lawrence720251970
Holt720251970
Hungerford620251991

Tufted Titmouse Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawest-virginiawisconsin

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