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

Upland Sandpiper Population Trend in Oklahoma

All statesGrassland birds

Upland Sandpiper in Oklahoma has surged: up 157% on the route-weighted index since 1969.

+157%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 →
37Routes 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 Upland Sandpiper Trends in OklahomaNotable 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 increasecomputed 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 surged in Oklahoma: up 157% on the route-weighted index since 1969.

Upland Sandpiper Population Forecast in Oklahoma

If the recent trend holds, Upland Sandpiper in Oklahoma is projected to rise about 53% by 2029 — from 0.59 in 2024 to a central estimate of 0.90 (95% range 0.00–1.9). A 5-year backtest shows a typical error of ±223.1%, with 100% of held-out values landing inside the 95% band.

+53%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 →
0.90Projected 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 →
0.00–1.995% 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 →
±223.1%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 Oklahoma is projected to rise about 53% by 2029 — from 0.59 in 2024 to a central estimate of 0.90 (95% range 0.00–1.9). A 5-year backtest shows a typical error of ±223.1%, 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 →
20250.880.001.8
20260.890.001.8
20270.890.001.9
20280.900.001.9
20290.900.001.9

Upland Sandpiper Survey Routes in Oklahoma

Routes recording Upland Sandpiper in Oklahoma.
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 →
Foraker1420241992
Cooperton820231992
Wakita620161975
Hooker620162012
Reed520191985
Arapaho420091999
Keyes420042004
Colony319951995
Hunter320241992
Woodward319991999
Skiatook320001986
Ardmore219671967
Peoria219921970
Collinsville220111990
Barnsdall219681968
Douglas220221969
Chester219881986
Goodwater219941994
Sickles220132000
Phroso119911991
Elgin120132013
Randlett120052004
Cookietown120061973
Canadian120042004
Indianola120052005

Upland Sandpiper Population Trend in Other States

alaskacoloradoillinoisindianaiowakansasmainemarylandmassachusettsmichiganminnesotamissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-dakotaohiooregonpennsylvaniarhode-islandsouth-dakotatexasvermontvirginiawest-virginiawisconsinwyoming

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