BirdAnalyst
Species · BCR 5 · BBS 2025 Release · 1966–2024

Red-breasted Nuthatch In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestForest birds

Red-breasted Nuthatch in Northern Pacific Rainforest has edged up: up 16% on the route-weighted index since 1970.

+16%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 →
141Routes 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 →
56YearsYears 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 →

No notable trend signals for Red-breasted Nuthatch in Northern Pacific Rainforest. See the full index history below.

Red-breasted Nuthatch In Northern Pacific Rainforest Population Forecast

If the recent trend holds, Red-breasted Nuthatch in Northern Pacific Rainforest is projected to rise about 50% by 2029 — from 4.3 in 2024 to a central estimate of 6.4 (95% range 4.0–8.8). A 5-year backtest shows a typical error of ±26.4%, with 100% of held-out values landing inside the 95% band.

+50%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 →
6.4Projected 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 →
4.0–8.895% 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 →
±26.4%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, Red-breasted Nuthatch in Northern Pacific Rainforest is projected to rise about 50% by 2029 — from 4.3 in 2024 to a central estimate of 6.4 (95% range 4.0–8.8). A 5-year backtest shows a typical error of ±26.4%, with 100% of held-out values landing inside the 95% band.19682029
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 →
20256.13.88.5
20266.23.88.6
20276.33.98.6
20286.33.98.7
20296.44.08.8

Routes In Northern Pacific Rainforest

Routes recording Red-breasted Nuthatch in Northern Pacific Rainforest.
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 →
ShellrockOREGON372023
Pilot CreekCALIFORNIA361996
South Fork MtnCALIFORNIA342022
DirigioCALIFORNIA302014
ClearwaterOREGON282021
MccloudCALIFORNIA272021
RainierWASHINGTON272019
Myrtle GroveOREGON262023
Mt. AdamsWASHINGTON242024
CinderellaOREGON232024
Warner Mtn.OREGON212024
Port AngelesWASHINGTON192024
Friday RidgeCALIFORNIA182024
TualatinOREGON172024
Elk LakeOREGON162024
CougarWASHINGTON162023
Big FlatCALIFORNIA152014
GreenwaterWASHINGTON152024
Mt ShastaCALIFORNIA142019
Burnt RanchCALIFORNIA142016
Whiskey Spg.OREGON142022
Cool CampOREGON132013
Hazel CampOREGON132022
SelmaOREGON122024
HopeALASKA112024

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.