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Species · Wyoming · BBS 2026 Release · 1966–2025

Red-breasted Nuthatch Population Trend in Wyoming

All statesForest birds

Red-breasted Nuthatch in Wyoming has surged: up 125% on the route-weighted index since 1970.

+125%Since 1970TrendPercent 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 →
50Routes 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 →
54YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Red-breasted Nuthatch Trends in WyomingNotable 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 →

Red-breasted Nuthatch has surged in Wyoming: up 125% on the route-weighted index since 1970.

Red-breasted Nuthatch Population Forecast in Wyoming

If the recent trend holds, Red-breasted Nuthatch in Wyoming is projected to rise about 21% by 2030 — from 0.97 in 2025 to a central estimate of 1.2 (95% range 0.49–1.9). A 5-year backtest shows a typical error of ±53.5%, with 100% of held-out values landing inside the 95% band.

+21%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 →
1.2Projected 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 →
0.49–1.995% 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 →
±53.5%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, Red-breasted Nuthatch in Wyoming is projected to rise about 21% by 2030 — from 0.97 in 2025 to a central estimate of 1.2 (95% range 0.49–1.9). A 5-year backtest shows a typical error of ±53.5%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20261.10.441.8
20271.10.451.8
20281.10.471.8
20291.20.481.8
20301.20.491.9

Red-breasted Nuthatch Survey Routes in Wyoming

Routes recording Red-breasted Nuthatch in Wyoming.
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 →
Moskee 31820252022
Sundance1720251975
Ryan Park1120251993
Crazy Woman720241980
Soda Lake720241982
Moskee 2620212002
Colter Bay519991968
Savery 2520252007
Mammoth420251982
Hunter Peak420251982
Bald Mtn420251990
Horse Creek420251980
Fletcher Pk420251982
Ne Entrance320241982
Dubois320221982
Seely 2320252007
Seely319961996
Moskee320011980
Colter Bay 2320252019
Yellowstone220251990
Prior Flats220252004
Savery219951989
Yoder219711971
West Thumb219821982
Moose220251978

Red-breasted Nuthatch Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutgeorgiaidahoillinoisindianakansasmainemarylandmassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsin

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