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

American Woodcock Population Trend in Vermont

All statesShorebirds

American Woodcock in Vermont has held roughly steady: down 8% on the route-weighted index since 1971.

-8%Since 1971TrendPercent 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 →
16Routes 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 →
25YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable American Woodcock 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 →

No notable trend signals for American Woodcock in Vermont. See the full index history below.

American Woodcock Population Forecast in Vermont

If the recent trend holds, American Woodcock in Vermont is projected to stay roughly flat through 2023, near 0.06 (95% range 0.00–0.21). A 5-year backtest shows a typical error of ±102.4%, 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 →
0.06Projected 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 →
0.00–0.2195% 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 →
±102.4%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 Woodcock in Vermont is projected to stay roughly flat through 2023, near 0.06 (95% range 0.00–0.21). A 5-year backtest shows a typical error of ±102.4%, with 60% of held-out values landing inside the 95% band.19692023
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 →
20190.060.000.22
20200.060.000.22
20210.060.000.21
20220.060.000.21
20230.060.000.21

American Woodcock Survey Routes in Vermont

Routes recording American Woodcock 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 →
Greensboro420132013
S Wallingfrd319781972
Stratton220161976
Waterville219721972
Hinesburg219721971
Marlboro120161970
North Pownal119811981
Landgrove119891989
Shaftsbury120021971
W Rutland119771977
Middlesex119861978
East Calais120181969
Fletcher119921987
Colchester119971997
Grand Isle120002000
Bristol119951995

American Woodcock Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvirginiawest-virginiawisconsin

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