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Species · BCR 14 · BBS 2026 Release · 1966–2025

Tufted Titmouse In Atlantic Northern Forest

All regionsAtlantic Northern ForestForest birds

Tufted Titmouse in Atlantic Northern Forest has surged: up 114× on the route-weighted index since 1974.

114×Since 1974TrendPercent 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 →
95Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
53YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable 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 Atlantic Northern Forest: up 114× on the route-weighted index since 1974.

Tufted Titmouse In Atlantic Northern Forest Population Forecast

If the recent trend holds, Tufted Titmouse in Atlantic Northern Forest is projected to fall about 22% by 2030 — from 7.9 in 2025 to a central estimate of 6.2 (95% range 4.6–7.7). A 5-year backtest shows a typical error of ±35.4%, with 0% of held-out values landing inside the 95% band.

-22%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 →
6.2Projected 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 →
4.6–7.795% 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 →
±35.4%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 Atlantic Northern Forest is projected to fall about 22% by 2030 — from 7.9 in 2025 to a central estimate of 6.2 (95% range 4.6–7.7). A 5-year backtest shows a typical error of ±35.4%, with 0% of held-out values landing inside the 95% band.19722030
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 →
20265.74.17.2
20275.84.27.3
20285.94.47.4
20296.04.57.6
20306.24.67.7

Routes In Atlantic Northern Forest

Routes recording Tufted Titmouse in Atlantic Northern Forest.
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 →
HopkintonNEW-HAMPSHIRE342025
N OrangeMASSACHUSETTS282025
Turner 2MAINE262025
MarlboroVERMONT262025
ChesterfieldMASSACHUSETTS252025
MontereyMASSACHUSETTS252025
CanterburyNEW-HAMPSHIRE252025
WestbrookMAINE232024
FitzwilliamNEW-HAMPSHIRE222025
Bowdoin CtrMAINE202021
ConcordNEW-HAMPSHIRE182025
Gilmantn I WNEW-HAMPSHIRE182025
MarlowNEW-HAMPSHIRE182025
Cummington 2MASSACHUSETTS172025
Mt ChocoruaNEW-HAMPSHIRE162025
Brownfield 2MAINE152025
NewcastleMAINE142024
SheffieldMASSACHUSETTS142022
HancockMASSACHUSETTS142015
GlenNEW-HAMPSHIRE142025
S HoriconNEW-YORK142018
LempsterNEW-HAMPSHIRE132025
GreenwoodMAINE122025
WalpoleNEW-HAMPSHIRE122025
GaysvilleVERMONT122025

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