BirdAnalyst
Species · BCR 9 · BBS 2026 Release · 1966–2025

Red-naped Sapsucker In Great Basin

All regionsGreat BasinForest birds

Red-naped Sapsucker in Great Basin has held roughly steady: up 5% on the route-weighted index since 1972.

+5%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 →
59Routes 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 →
51YearsYears 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-naped Sapsucker in Great Basin. See the full index history below.

Red-naped Sapsucker In Great Basin Population Forecast

If the recent trend holds, Red-naped Sapsucker in Great Basin is projected to rise about 133% by 2030 — from 0.09 in 2025 to a central estimate of 0.21 (95% range 0.09–0.34). A 5-year backtest shows a typical error of ±88.3%, with 40% of held-out values landing inside the 95% band.

+133%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 →
0.21Projected 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 →
0.09–0.3495% 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 →
±88.3%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 Great Basin is projected to rise about 133% by 2030 — from 0.09 in 2025 to a central estimate of 0.21 (95% range 0.09–0.34). A 5-year backtest shows a typical error of ±88.3%, with 40% of held-out values landing inside the 95% band.19692030
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 →
20260.210.080.34
20270.210.080.34
20280.210.080.34
20290.210.080.34
20300.210.090.34

Routes In Great Basin

Routes recording Red-naped Sapsucker in Great Basin.
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 →
Magic MtnIDAHO52025
BlyOREGON51995
Barnes ValOREGON41984
WinthropWASHINGTON42022
LeavenworthWASHINGTON42017
Humboldt NfNEVADA32015
Dell SpringOREGON31990
Lapham Res.OREGON32004
BakerIDAHO22023
SquirrelIDAHO22025
TriangleIDAHO22014
BatesIDAHO22009
JarbidgeNEVADA22013
LynnUTAH22011
TonasketWASHINGTON22018
EllensburgWASHINGTON22022
CarltonWASHINGTON22022
L. WenatcheeWASHINGTON22010
Davis CreekCALIFORNIA11999
GiffordIDAHO12015
LeadoreIDAHO12024
CratersIDAHO11994
SpringfieldIDAHO12004
PocatelloIDAHO12015
Blackft ResIDAHO12010

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