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

White-breasted Nuthatch Population Trend in Utah

All statesForest birds

White-breasted Nuthatch in Utah has declined: down 27% on the route-weighted index since 1980.

-27%Since 1980TrendPercent 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 →
32Routes 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 →
41YearsYears 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 UtahNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for White-breasted Nuthatch in Utah. See the full index history below.

White-breasted Nuthatch Population Forecast in Utah

If the recent trend holds, White-breasted Nuthatch in Utah is projected to fall about 44% by 2030 — from 0.32 in 2025 to a central estimate of 0.18 (95% range 0.00–0.40). A 5-year backtest shows a typical error of ±26.6%, with 100% of held-out values landing inside the 95% band.

-44%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 →
0.18Projected 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 →
0.00–0.4095% 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 →
±26.6%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 Utah is projected to fall about 44% by 2030 — from 0.32 in 2025 to a central estimate of 0.18 (95% range 0.00–0.40). A 5-year backtest shows a typical error of ±26.6%, with 100% of held-out values landing inside the 95% band.19702030
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 →
20260.190.000.40
20270.180.000.40
20280.180.000.40
20290.180.000.40
20300.180.000.40

White-breasted Nuthatch Survey Routes in Utah

Routes recording White-breasted Nuthatch in Utah.
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 →
La Sal2020001996
Bryce Canyon820251990
Monticello520251999
Navajo Lake420251970
Alton320171997
Moquith Mtn320141989
Beck219801973
Grizzly Rdge220221986
Gooseberry220251996
Shivwitz219981998
Dixie Nf220241993
Newcastle220122000
Fish Lake Nf220181992
Beryl220132012
Moon Lake 2120142014
Altonah120072006
La Sal 2120062004
Willow Creek120052002
Beaver120182015
Boulder120142006
M Warner Res120181996
Fayette120131992
Alton 2120252021
Richfield120141994
Hanna120232000

White-breasted Nuthatch Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawashingtonwest-virginiawisconsinwyoming

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