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Species · Wyoming · BBS 2025 Release · 1966–2024

Spotted Sandpiper Population Trend in Wyoming

All statesShorebirds

Spotted Sandpiper in Wyoming has edged down: down 17% on the route-weighted index since 1971.

-17%Since 1971TrendPercent 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 →
84Routes 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 →
54YearsYears 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 WyomingNotable 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 Wyoming. See the full index history below.

Spotted Sandpiper Population Forecast in Wyoming

If the recent trend holds, Spotted Sandpiper in Wyoming is projected to rise about 208% by 2029 — from 0.35 in 2024 to a central estimate of 1.1 (95% range 0.31–1.8). A 5-year backtest shows a typical error of ±144.8%, with 40% of held-out values landing inside the 95% band.

+208%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 →
1.1Projected 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 →
0.31–1.895% 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 →
±144.8%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, Spotted Sandpiper in Wyoming is projected to rise about 208% by 2029 — from 0.35 in 2024 to a central estimate of 1.1 (95% range 0.31–1.8). A 5-year backtest shows a typical error of ±144.8%, with 40% 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 →
20251.10.291.8
20261.10.291.8
20271.10.301.8
20281.10.301.8
20291.10.311.8

Spotted Sandpiper Survey Routes in Wyoming

Routes recording Spotted Sandpiper in Wyoming.
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 →
Yellowstone2020221987
Ne Entrance1020211982
Alpine620241979
Mayoworth420021982
Rock River419931993
Patrick Draw319801978
Yoder320242024
Recluse319811981
Teapot Dome319831981
Buckskin Mtn320211980
Fiddler Lk320231980
Diamondville319791979
Green River319841977
Seely 2320112005
Bucknum320011997
Seedskadee 2320242024
Clarkelen219751972
Fontenelle220241982
Seely219991995
Upton220241993
Wilson220241979
Ethete220212021
Gebo220232012
Sussex220052005
Boulder220231982

Spotted Sandpiper Population Trend in Other States

alabamaalaskaarizonacaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsin

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