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Species · BCR 4 · BBS 2025 Release · 1966–2024

American Golden-Plover In BCR 4

All regionsBCR 4Shorebirds

American Golden-Plover in BCR 4 has collapsed: down 97% on the route-weighted index since 1986.

-97%Since 1986TrendPercent 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 →
8Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
23YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable 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 →

American Golden-Plover has collapsed in BCR 4: down 97% on the route-weighted index since 1986.

American Golden-Plover In BCR 4 Population Forecast

If the recent trend holds, American Golden-Plover in BCR 4 is projected to stay roughly flat through 2023, near 0.00 (95% range 0.00–0.35). A 5-year backtest shows a typical error of ±1058.2%, with 60% of held-out values landing inside the 95% band.

n/aChange by 2023TrendPercent 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 →
0.00Projected 2023 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.3595% 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 →
±1058.2%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, American Golden-Plover in BCR 4 is projected to stay roughly flat through 2023, near 0.00 (95% range 0.00–0.35). A 5-year backtest shows a typical error of ±1058.2%, with 60% of held-out values landing inside the 95% band.19822023
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 →
20190.000.000.35
20200.000.000.35
20210.000.000.35
20220.000.000.35
20230.000.000.35

Routes In BCR 4

Routes recording American Golden-Plover in BCR 4.
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 →
ChistochinaALASKA22001
MonahanALASKA22011
Tangle LakesALASKA21987
Paxson LakeALASKA21991
MaclarenALASKA12018
ToklatALASKA12012
Caribou Mtn.ALASKA11995
Nabesna RoadALASKA11997

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