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Species · Oregon · BBS 2026 Release · 1966–2025

Red-naped Sapsucker Population Trend in Oregon

All statesForest birds

Red-naped Sapsucker in Oregon has increased: up 34% on the route-weighted index since 1972.

+34%Since 1972TrendPercent 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 →
44Routes 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 →
50YearsYears 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-naped Sapsucker Trends in OregonNotable 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-naped Sapsucker in Oregon. See the full index history below.

Red-naped Sapsucker Population Forecast in Oregon

If the recent trend holds, Red-naped Sapsucker in Oregon is projected to rise about 164% by 2030 — from 0.06 in 2025 to a central estimate of 0.16 (95% range 0.00–0.42). A 5-year backtest shows a typical error of ±203.6%, with 100% of held-out values landing inside the 95% band.

+164%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 →
0.16Projected 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 →
0.00–0.4295% 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 →
±203.6%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, Red-naped Sapsucker in Oregon is projected to rise about 164% by 2030 — from 0.06 in 2025 to a central estimate of 0.16 (95% range 0.00–0.42). A 5-year backtest shows a typical error of ±203.6%, 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 →
20260.160.000.43
20270.160.000.43
20280.160.000.42
20290.160.000.42
20300.160.000.42

Red-naped Sapsucker Survey Routes in Oregon

Routes recording Red-naped Sapsucker in Oregon.
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 →
Granite620071987
Flora520051986
Bly519951995
Barnes Val419841984
Desolation419981993
Lapham Res.320041991
Wickiup320221972
Dell Spring319901986
Elk Lake320011975
Silver Creek220251990
Newbridge220241992
Donelly 2220252019
Black Mtn.220041993
Donnelly219951994
Albee120131971
Summit Pr120241984
Zumwalt120021995
Ochoco119791974
Logdell120221986
Bridgeport120172003
Winberry119681968
Paisley120081973
Alvord Lake120092009
Joseph120251991
Eagle Rock119741974

Red-naped Sapsucker Population Trend in Other States

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