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Species · Wisconsin · BBS 2026 Release · 1966–2025

Tufted Titmouse Population Trend in Wisconsin

All statesForest birds

Tufted Titmouse in Wisconsin has surged: up 146% on the route-weighted index since 1968.

+146%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 →
49Routes 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 →
57YearsYears 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 WisconsinNotable 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 Wisconsin: up 146% on the route-weighted index since 1968.

Tufted Titmouse Population Forecast in Wisconsin

If the recent trend holds, Tufted Titmouse in Wisconsin is projected to fall about 25% by 2030 — from 0.52 in 2025 to a central estimate of 0.39 (95% range 0.19–0.58). A 5-year backtest shows a typical error of ±27%, with 100% of held-out values landing inside the 95% band.

-25%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 →
0.39Projected 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 →
0.19–0.5895% 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 →
±27%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 Wisconsin is projected to fall about 25% by 2030 — from 0.52 in 2025 to a central estimate of 0.39 (95% range 0.19–0.58). A 5-year backtest shows a typical error of ±27%, 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 →
20260.360.170.56
20270.370.170.57
20280.380.180.57
20290.380.180.58
20300.390.190.58

Tufted Titmouse Survey Routes in Wisconsin

Routes recording Tufted Titmouse in Wisconsin.
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 →
Cadott720251968
Hazel Green520061966
New Lisbon420251981
Weyerhauser320251995
Highland320251999
Newburg Crns320251966
Rolling Grnd320251966
Pardeeville320251985
Princeton320242008
Hudson219981980
Hatfield219961996
Mukwonago 2220242010
Viroqua220241966
Fall River220252001
River Falls220251999
Buena Vista220232023
Hebron220232002
Briggsville220252004
Union Twp119971971
Cumberland120242024
Gilman120192019
Omro 2120222022
Rib Lake120172017
Hollister119731973
Amberg120212021

Tufted Titmouse Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawest-virginia

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