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Species · Indiana · BBS 2026 Release · 1966–2025

White-breasted Nuthatch Population Trend in Indiana

All statesForest birds

White-breasted Nuthatch in Indiana has surged: up 492% on the route-weighted index since 1968.

+492%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 →
69Routes 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 White-breasted Nuthatch Trends in IndianaNotable 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 →

White-breasted Nuthatch has surged in Indiana: up 492% on the route-weighted index since 1968.

White-breasted Nuthatch Population Forecast in Indiana

If the recent trend holds, White-breasted Nuthatch in Indiana is projected to rise about 26% by 2030 — from 3.3 in 2025 to a central estimate of 4.2 (95% range 3.1–5.4). A 5-year backtest shows a typical error of ±13.3%, with 100% of held-out values landing inside the 95% band.

+26%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 →
4.2Projected 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 →
3.1–5.495% 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 →
±13.3%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, White-breasted Nuthatch in Indiana is projected to rise about 26% by 2030 — from 3.3 in 2025 to a central estimate of 4.2 (95% range 3.1–5.4). A 5-year backtest shows a typical error of ±13.3%, 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 →
20264.02.95.2
20274.12.95.2
20284.13.05.3
20294.23.05.3
20304.23.15.4

White-breasted Nuthatch Survey Routes in Indiana

Routes recording White-breasted Nuthatch in Indiana.
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 →
Hoosier2320251990
Belmont2020241981
Witts Station1420252000
Azalia1220251982
Wallace1020241999
Lakeville1020241993
Georgia920251999
Cross Plains820251999
Knox720251981
Brookville720251970
Indian Spgs720251982
New Phila720251982
Spencer620241973
Middletown520251968
Celestine520251979
Lagrange520241999
Packertown420041967
Cumback420251970
Clear Spring420251981
Corydon420251966
Vevay420251966
Cyprss420242000
Maplewood420192000
Middlebury320251989
Thorntown320251982

White-breasted Nuthatch Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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