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Species · Indiana · BBS 2025 Release · 1966–2024

White-breasted Nuthatch Population Trend in Indiana

All statesForest birds

White-breasted Nuthatch in Indiana has surged: up 493% on the route-weighted index since 1968.

+493%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 →
68Routes 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 →
58YearsYears 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 493% 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 stay roughly flat through 2029, near 4.2 (95% range 3.1–5.4). A 5-year backtest shows a typical error of ±19.2%, with 80% of held-out values landing inside the 95% band.

-0%Change by 2029TrendPercent 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 2029 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 →
±19.2%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 stay roughly flat through 2029, near 4.2 (95% range 3.1–5.4). A 5-year backtest shows a typical error of ±19.2%, with 80% of held-out values landing inside the 95% band.19662029
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 →
20254.02.85.1
20264.02.95.2
20274.13.05.3
20284.23.05.3
20294.23.15.4

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 →
Hoosier3320241990
Belmont2020241981
Celestine1520241979
Knox1220241981
Wallace1020241999
Witts Station1020242000
Georgia1020241999
Lakeville1020241993
Galveston720241981
Cumback720211970
New Phila720241982
Portage 2720242006
Spencer620241973
Clear Spring620241981
Scottsburg620241982
Monticello520241984
Azalia520241982
Indian Spgs520241982
Lagrange520241999
Packertown420041967
Shelbyville420241983
Brookville420241970
Vevay420241966
Cyprss420242000
Maplewood420192000

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 2026-05-22.