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

Red-breasted Sapsucker In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestForest birds

Red-breasted Sapsucker in Northern Pacific Rainforest has surged: up 425% on the route-weighted index since 1970.

+425%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 →
143Routes 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 →

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 Sapsucker has surged in Northern Pacific Rainforest: up 425% on the route-weighted index since 1970.

Red-breasted Sapsucker In Northern Pacific Rainforest Population Forecast

If the recent trend holds, Red-breasted Sapsucker in Northern Pacific Rainforest is projected to stay roughly flat through 2029, near 3.5 (95% range 2.3–4.6). A 5-year backtest shows a typical error of ±13.8%, with 100% of held-out values landing inside the 95% band.

+7%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 →
3.5Projected 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 →
2.3–4.695% 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 →
±13.8%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 Sapsucker in Northern Pacific Rainforest is projected to stay roughly flat through 2029, near 3.5 (95% range 2.3–4.6). A 5-year backtest shows a typical error of ±13.8%, 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 →
20253.22.14.4
20263.32.24.4
20273.42.24.5
20283.42.34.5
20293.52.34.6

Routes In Northern Pacific Rainforest

Routes recording Red-breasted Sapsucker 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 →
Chichagof IsALASKA362024
Mitkof IsleALASKA282024
PetersburgALASKA241987
CraigALASKA212024
HoonahALASKA202024
Thorne BayALASKA192012
ZaremboALASKA162024
Thorne Bay 2ALASKA142024
Zimovia StrtALASKA132024
Beaver CreekALASKA101977
Whale PassALASKA102024
Kuiu IslandALASKA102010
Friday RidgeCALIFORNIA102024
LoraneOREGON102024
South Fork MtnCALIFORNIA72022
CougarWASHINGTON72023
GazelleCALIFORNIA62021
ClearwaterOREGON62021
Juneau AltALASKA51985
Fish RockCALIFORNIA52014
Mt ShastaCALIFORNIA52019
Warner Mtn.OREGON52023
CinderellaOREGON52024
EverettWASHINGTON52024
South ElmaWASHINGTON52024

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