BirdAnalyst
Species · BCR 12 · BBS 2025 Release · 1966–2024

American Woodcock In Boreal Hardwood Transition

All regionsBoreal Hardwood TransitionShorebirds

American Woodcock in Boreal Hardwood Transition has collapsed: down 89% on the route-weighted index since 1968.

-89%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 →
86Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable 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 collapsed in Boreal Hardwood Transition: down 89% on the route-weighted index since 1968.

American Woodcock In Boreal Hardwood Transition Population Forecast

If the recent trend holds, American Woodcock in Boreal Hardwood Transition is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.10). A 5-year backtest shows a typical error of ±70.9%, with 100% of held-out values landing inside the 95% band.

n/aChange 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 →
0.00Projected 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 →
0.00–0.1095% 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 →
±70.9%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 Boreal Hardwood Transition is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.10). A 5-year backtest shows a typical error of ±70.9%, with 100% 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 →
20250.010.000.11
20260.010.000.10
20270.000.000.10
20280.000.000.10
20290.000.000.10

Routes In Boreal Hardwood Transition

Routes recording American Woodcock in Boreal Hardwood Transition.
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 →
BackusMINNESOTA51981
Ned LakeMICHIGAN31986
PhillipsWISCONSIN31984
GilchristMICHIGAN22016
Traverse CtyMICHIGAN21974
Brush CreekMICHIGAN21993
SkeelsMICHIGAN21986
Hart LakeMINNESOTA22012
Nett LakeMINNESOTA22013
FlambeauWISCONSIN22011
BerglandMICHIGAN11990
MareniscoMICHIGAN11994
BootjackMICHIGAN11994
HermanMICHIGAN11984
Crystal FlsMICHIGAN12022
Gibbs CityMICHIGAN11982
Maple GroveMICHIGAN11997
IshpemingMICHIGAN11981
Brocky LakeMICHIGAN11980
WilsonMICHIGAN11975
CunardMICHIGAN11997
ShingletonMICHIGAN12002
CreightonMICHIGAN11989
IsabellaMICHIGAN11966
MuskallongeMICHIGAN12009

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