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Species · BCR 4 · BBS 2026 Release · 1966–2025

Wilson's Snipe In BCR 4

All regionsBCR 4Shorebirds

Wilson's Snipe in BCR 4 has surged: up 87% on the route-weighted index since 1976.

+87%Since 1976TrendPercent 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 →
67Routes 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 →
48YearsYears 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 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 →

Wilson's Snipe has surged in BCR 4: up 87% on the route-weighted index since 1976.

Wilson's Snipe In BCR 4 Population Forecast

If the recent trend holds, Wilson's Snipe in BCR 4 is projected to rise about 39% by 2030 — from 5.6 in 2025 to a central estimate of 7.8 (95% range 3.6–12). A 5-year backtest shows a typical error of ±33.8%, with 100% of held-out values landing inside the 95% band.

+39%Change by 2030TrendPercent 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 →
7.8Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
3.6–1295% 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 →
±33.8%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, Wilson's Snipe in BCR 4 is projected to rise about 39% by 2030 — from 5.6 in 2025 to a central estimate of 7.8 (95% range 3.6–12). A 5-year backtest shows a typical error of ±33.8%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20267.73.412
20277.73.512
20287.73.512
20297.83.512
20307.83.612

Routes In BCR 4

Routes recording Wilson's Snipe 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 →
Koyukuk Riv.ALASKA332001
PetersvilleALASKA302025
Hather CreekALASKA272024
Nicholai SlALASKA252025
WasillaALASKA241983
Bear CreekALASKA221991
Kanuti LakeALASKA222024
Burma RoadALASKA182025
Mud RiverALASKA162024
CircleALASKA132025
KachemakALASKA132025
Kobuk River (Short)ALASKA111992
MaclarenALASKA102025
HomerALASKA101982
Anchor RiverALASKA102025
Galena (Short)ALASKA102025
KalifonskyALASKA92025
Unalakleet RiverALASKA92024
ChistochinaALASKA82025
SourdoughALASKA82025
CohoeALASKA82023
Swan Lake RdALASKA72025
NorthwayALASKA62023
Goose BayALASKA61982
Chena Hot Spring 2ALASKA62025

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.