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Species · Missouri · BBS 2025 Release · 1966–2024

Upland Sandpiper Population Trend in Missouri

All statesGrassland birds

Upland Sandpiper in Missouri has collapsed: down 88% on the route-weighted index since 1969.

-88%Since 1969TrendPercent 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 →
35Routes 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 →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Upland Sandpiper Trends in MissouriNotable 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 →

Upland Sandpiper has collapsed in Missouri: down 88% on the route-weighted index since 1969.

Upland Sandpiper Population Forecast in Missouri

If the recent trend holds, Upland Sandpiper in Missouri is projected to rise about 131% by 2029 — from 0.10 in 2024 to a central estimate of 0.24 (95% range 0.00–0.67). A 5-year backtest shows a typical error of ±338.7%, with 100% of held-out values landing inside the 95% band.

+131%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 →
0.24Projected 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 →
0.00–0.6795% 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 →
±338.7%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, Upland Sandpiper in Missouri is projected to rise about 131% by 2029 — from 0.10 in 2024 to a central estimate of 0.24 (95% range 0.00–0.67). A 5-year backtest shows a typical error of ±338.7%, with 100% of held-out values landing inside the 95% band.19672029
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 →
20250.280.000.70
20260.270.000.69
20270.260.000.69
20280.250.000.68
20290.240.000.67

Upland Sandpiper Survey Routes in Missouri

Routes recording Upland Sandpiper in Missouri.
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 →
Stet919951972
Cole Camp719901971
Hamilton519851977
Sedalia320241991
Barnard220181999
Watson220242018
Lucerne220212018
Sni Mills219831982
Rensselaer219921989
Huntsville219881977
Rockingham219911975
Trenton220181972
Bolckow219921968
Kirksville220241994
Mcfall220221994
Norborne120232006
Cameron120231986
Akers119861986
Elmo120232016
Handley120092009
Filley119831975
Reeds119991997
Dover120162016
Danville120231974
Syracuse120051973

Upland Sandpiper Population Trend in Other States

alaskacoloradoillinoisindianaiowakansasmainemarylandmassachusettsmichiganminnesotamontananebraskanew-hampshirenew-jerseynew-yorknorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatexasvermontvirginiawest-virginiawisconsinwyoming

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