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Species · Connecticut · BBS 2025 Release · 1966–2024

American Woodcock Population Trend in Connecticut

All statesShorebirds

American Woodcock in Connecticut has fallen sharply: down 61% on the route-weighted index since 1973.

-61%Since 1973TrendPercent 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 →
9Routes 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 →
19YearsYears 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 ConnecticutNotable 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 declinecomputed 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 →

American Woodcock has fallen sharply in Connecticut: down 61% on the route-weighted index since 1973.

American Woodcock Population Forecast in Connecticut

If the recent trend holds, American Woodcock in Connecticut is projected to fall about 59% by 2026 — from 0.09 in 2021 to a central estimate of 0.04 (95% range 0.00–0.18). A 5-year backtest shows a typical error of ±132.9%, with 60% of held-out values landing inside the 95% band.

-59%Change by 2026TrendPercent 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 →
0.04Projected 2026 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.1895% 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 →
±132.9%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, American Woodcock in Connecticut is projected to fall about 59% by 2026 — from 0.09 in 2021 to a central estimate of 0.04 (95% range 0.00–0.18). A 5-year backtest shows a typical error of ±132.9%, with 60% of held-out values landing inside the 95% band.19682026
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 →
20220.040.000.19
20230.040.000.18
20240.040.000.18
20250.040.000.18
20260.040.000.18

American Woodcock Survey Routes in Connecticut

Routes recording American Woodcock in Connecticut.
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 →
Mystic119811981
Uncasville119891988
New Hartford120042004
Willimantic120052005
Danbury119721968
Warren120011972
Long Hill119801973
Mid Haddam119951992
Southington120212021

American Woodcock Population Trend in Other States

alabamaarkansasdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawest-virginiawisconsin

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