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

American Woodcock Population Trend in Maryland

All statesShorebirds

American Woodcock in Maryland has declined: down 36% on the route-weighted index since 1968.

-36%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 →
25Routes 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 →
24YearsYears 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 MarylandNotable 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 Maryland. See the full index history below.

American Woodcock Population Forecast in Maryland

If the recent trend holds, American Woodcock in Maryland is projected to stay roughly flat through 2013, near 0.02 (95% range 0.00–0.10). A 5-year backtest shows a typical error of ±255%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2013TrendPercent 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 →
0.02Projected 2013 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.1095% 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 →
±255%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 Maryland is projected to stay roughly flat through 2013, near 0.02 (95% range 0.00–0.10). A 5-year backtest shows a typical error of ±255%, with 100% of held-out values landing inside the 95% band.19662013
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 →
20090.020.000.11
20100.020.000.10
20110.020.000.10
20120.020.000.10
20130.020.000.10

American Woodcock Survey Routes in Maryland

Routes recording American Woodcock in Maryland.
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 →
Mardela319841966
Floyd119671967
Mt Nebo119851985
Oldtown119721970
Williamsport119751975
Smithsburg119771977
Wolfsville119771977
Norwood119741969
Randallstown119711971
Van Bibber119741973
Jones119711968
Beltsville119791979
Berlin119851985
Tall Timbers119761976
Pomonkey119661966
Pomfret119771971
Northeast119851985
Melitota119911971
Piney Neck119831971
Easton119871970
Golden Hill119971975
Honga119711970
Madison119911973
Newark119731973
Jennings120082000

American Woodcock Population Trend in Other States

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

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