BirdAnalyst
Species · Oregon · BBS 2025 Release · 1966–2024

Spotted Sandpiper Population Trend in Oregon

All statesShorebirds

Spotted Sandpiper in Oregon has declined: down 40% on the route-weighted index since 1970.

-40%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 →
95Routes 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 →
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 Spotted Sandpiper 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 Spotted Sandpiper in Oregon. See the full index history below.

Spotted Sandpiper Population Forecast in Oregon

If the recent trend holds, Spotted Sandpiper in Oregon is projected to fall about 66% by 2029 — from 0.30 in 2024 to a central estimate of 0.10 (95% range 0.00–0.50). A 5-year backtest shows a typical error of ±52.2%, with 100% of held-out values landing inside the 95% band.

-66%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 →
0.10Projected 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 →
0.00–0.5095% 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 →
±52.2%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, Spotted Sandpiper in Oregon is projected to fall about 66% by 2029 — from 0.30 in 2024 to a central estimate of 0.10 (95% range 0.00–0.50). A 5-year backtest shows a typical error of ±52.2%, 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 →
20250.160.000.56
20260.150.000.55
20270.130.000.53
20280.120.000.52
20290.100.000.50

Spotted Sandpiper Survey Routes in Oregon

Routes recording Spotted Sandpiper 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 →
Sparta1220011973
Umatilla720232021
Granite520221987
Donnybrook519971997
Desolation519991993
Logdell420221971
Barnes Val419871971
Wedderburn320241970
Canby320192000
Unity320242022
Twickenham320242011
Albee219951969
Imnaha220241971
Ochoco219821975
Wickiup220221970
Hauser219701970
Dell Spring219901968
Alvord Lake220221969
Clearwater220211993
Emigrant Lk220011972
Glasgow219961994
Summit Pr220191980
Hells Canyon220051995
Newbridge220242024
Picture Flat220241993

Spotted Sandpiper Population Trend in Other States

alabamaalaskaarizonacaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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