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

Wilson's Snipe Population Trend in Vermont

All statesShorebirds

Wilson's Snipe in Vermont has surged: up 263% on the route-weighted index since 1968.

+263%Since 1968TrendPercent 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 →
24Routes 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 →
58YearsYears 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 VermontNotable 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 Vermont: up 263% on the route-weighted index since 1968.

Wilson's Snipe Population Forecast in Vermont

If the recent trend holds, Wilson's Snipe in Vermont is projected to rise about 62% by 2029 — from 0.94 in 2024 to a central estimate of 1.5 (95% range 0.28–2.8). A 5-year backtest shows a typical error of ±165.3%, with 60% of held-out values landing inside the 95% band.

+62%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 →
1.5Projected 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 →
0.28–2.895% 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 →
±165.3%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 Vermont is projected to rise about 62% by 2029 — from 0.94 in 2024 to a central estimate of 1.5 (95% range 0.28–2.8). A 5-year backtest shows a typical error of ±165.3%, with 60% of held-out values landing inside the 95% band.19662029
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 →
20251.50.252.8
20261.50.262.8
20271.50.272.8
20281.50.272.8
20291.50.282.8

Wilson's Snipe Survey Routes in Vermont

Routes recording Wilson's Snipe in Vermont.
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 →
Middlesex620241980
Hinesburg419931966
Greensboro320241973
Fletcher320231968
Stratton220211968
S Wallingfrd220171972
W Rutland220161966
St Johnsbury220241990
East Haven220241973
Northfld Fls220181987
Hardwick220241970
Stowe220241989
Marlboro119721972
Landgrove120221988
Gaysville120122012
Post Mills120121976
Shaftsbury119771968
East Calais120231978
Newbury120041991
Waterville119801979
Colchester120191986
Grand Isle120191968
Newbury 2120182005
Bristol120171995

Wilson's Snipe Population Trend in Other States

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