BirdAnalyst
Species · New Hampshire · BBS 2025 Release · 1966–2024

American Woodcock Population Trend in New Hampshire

All statesShorebirds

American Woodcock in New Hampshire has held roughly steady: down 4% on the route-weighted index since 1971.

-4%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 →
14Routes 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 →
22YearsYears 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 New HampshireNotable 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 New Hampshire. See the full index history below.

American Woodcock Population Forecast in New Hampshire

If the recent trend holds, American Woodcock in New Hampshire is projected to stay roughly flat through 2028, near 0.07 (95% range 0.00–0.15). A 5-year backtest shows a typical error of ±94.3%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2028TrendPercent 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 →
0.07Projected 2028 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.1595% 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 →
±94.3%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, American Woodcock in New Hampshire is projected to stay roughly flat through 2028, near 0.07 (95% range 0.00–0.15). A 5-year backtest shows a typical error of ±94.3%, with 100% of held-out values landing inside the 95% band.19672028
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 →
20240.070.000.15
20250.070.000.15
20260.070.000.15
20270.070.000.15
20280.070.000.15

American Woodcock Survey Routes in New Hampshire

Routes recording American Woodcock in New Hampshire.
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 →
Jefferson Hl220051987
Peterborough119771967
Fitzwilliam120151984
Dover119811973
Hopkinton120051981
Strafford119691969
Gilmantn I W120062006
Wilmot119841984
Marlow119911974
Franconia119711971
Stratford119751975
Dixvil Notch119721972
Clarksville119771972
Jeffers Ntch120232009

American Woodcock Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawest-virginiawisconsin

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