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

Wilson's Snipe In BCR 4

All regionsBCR 4Shorebirds

Wilson's Snipe in BCR 4 has surged: up 104% on the route-weighted index since 1976.

+104%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 →
47YearsYears 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 104% 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 16% by 2029 — from 6.9 in 2024 to a central estimate of 8.0 (95% range 3.8–12). A 5-year backtest shows a typical error of ±23.7%, with 100% of held-out values landing inside the 95% band.

+16%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 →
8.0Projected 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 →
3.8–1295% 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 →
±23.7%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, Wilson's Snipe in BCR 4 is projected to rise about 16% by 2029 — from 6.9 in 2024 to a central estimate of 8.0 (95% range 3.8–12). A 5-year backtest shows a typical error of ±23.7%, with 100% of held-out values landing inside the 95% band.19682029
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 →
20257.83.612
20267.93.612
20277.93.712
20288.03.712
20298.03.812

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 →
PetersvilleALASKA392024
Koyukuk Riv.ALASKA332001
Hather CreekALASKA272024
WasillaALASKA241983
Nicholai SlALASKA232024
Bear CreekALASKA221991
Kanuti LakeALASKA222024
Burma RoadALASKA172024
Mud RiverALASKA162024
KachemakALASKA132024
Galena (Short)ALASKA122024
Kobuk River (Short)ALASKA111992
HomerALASKA101982
Seven LakesALASKA102023
MaclarenALASKA92024
Anchor RiverALASKA92024
Unalakleet RiverALASKA92024
KalifonskyALASKA82023
CohoeALASKA82023
MonahanALASKA72021
NorthwayALASKA62023
Goose BayALASKA61982
WillowALASKA62024
SlanaALASKA52024
SourdoughALASKA52024

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