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

Spotted Sandpiper Population Trend in Nevada

All statesShorebirds

Spotted Sandpiper in Nevada has fallen sharply: down 63% on the route-weighted index since 1971.

-63%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 →
14Routes 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 →
31YearsYears 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 NevadaNotable 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 declinecomputed 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 →

Spotted Sandpiper has fallen sharply in Nevada: down 63% on the route-weighted index since 1971.

Spotted Sandpiper Population Forecast in Nevada

If the recent trend holds, Spotted Sandpiper in Nevada is projected to stay roughly flat through 2022, near 0.02 (95% range 0.00–0.53). A 5-year backtest shows a typical error of ±36.9%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2022TrendPercent 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 →
0.02Projected 2022 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.5395% 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 →
±36.9%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 Nevada is projected to stay roughly flat through 2022, near 0.02 (95% range 0.00–0.53). A 5-year backtest shows a typical error of ±36.9%, with 100% of held-out values landing inside the 95% band.19682022
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 →
20180.050.000.56
20190.040.000.55
20200.040.000.55
20210.030.000.54
20220.020.000.53

Spotted Sandpiper Survey Routes in Nevada

Routes recording Spotted Sandpiper in Nevada.
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 →
Dobbin Creek319821971
Calico Spr219691969
Sand Pass219871987
Midas119931990
Jarbidge120152014
Ranchogrande120141990
Austin120152014
Virgin Creek120171997
Eureka120111996
Illipah119971997
Majors Place119891989
Gardnerville119951995
Fallon120071995
Hiko119991968

Spotted Sandpiper Population Trend in Other States

alabamaalaskaarizonacaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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