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Species · Alaska · BBS 2026 Release · 1966–2025

Wilson's Snipe Population Trend in Alaska

All statesShorebirds

Wilson's Snipe in Alaska has surged: up 96% on the route-weighted index since 1976.

+96%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 →
116Routes 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 →
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 Wilson's Snipe Trends in AlaskaNotable 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 Alaska: up 96% on the route-weighted index since 1976.

Wilson's Snipe Population Forecast in Alaska

If the recent trend holds, Wilson's Snipe in Alaska is projected to rise about 46% by 2030 — from 5.8 in 2025 to a central estimate of 8.5 (95% range 4.2–13). A 5-year backtest shows a typical error of ±40.9%, with 100% of held-out values landing inside the 95% band.

+46%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 →
8.5Projected 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 →
4.2–1395% 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 →
±40.9%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 Alaska is projected to rise about 46% by 2030 — from 5.8 in 2025 to a central estimate of 8.5 (95% range 4.2–13). A 5-year backtest shows a typical error of ±40.9%, 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 →
20268.33.913
20278.44.013
20288.44.013
20298.54.113
20308.54.213

Wilson's Snipe Survey Routes in Alaska

Routes recording Wilson's Snipe in Alaska.
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 →
Nome9720231993
Tupuknuk4719951995
Cordova4320241983
Koyukuk Riv.3320011993
Petersville3020251986
Selawik (Short)3019871986
Hather Creek2720241993
Nicholai Sl2520251993
Kugarak (Short)2519871986
Cold Bay2420251993
Wasilla2419831983
Gweek River2320021994
Bear Creek2219911986
Chiniak2220251985
Kanuti Lake2220242006
Salmon Lake2120241993
Kodiak1919841983
King Salmon1920251993
Copper River1920111993
Council1920241993
Burma Road1820251996
Dillingham1620191993
Mud River1620241993
Teller1620241993
Goodnews Bay1420051999

Wilson's Snipe Population Trend in Other States

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