BirdAnalyst
Species · BCR 23 · BBS 2025 Release · 1966–2024

Wilson's Snipe In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionShorebirds

Wilson's Snipe in Prairie Hardwood Transition has fallen sharply: down 51% on the route-weighted index since 1968.

-51%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 →
81Routes 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 →
58YearsYears 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 →

Wilson's Snipe has fallen sharply in Prairie Hardwood Transition: down 51% on the route-weighted index since 1968.

Wilson's Snipe In Prairie Hardwood Transition Population Forecast

If the recent trend holds, Wilson's Snipe in Prairie Hardwood Transition is projected to fall about 56% by 2029 — from 0.17 in 2024 to a central estimate of 0.07 (95% range 0.00–0.48). A 5-year backtest shows a typical error of ±51.7%, with 100% of held-out values landing inside the 95% band.

-56%Change 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 →
0.07Projected 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 →
0.00–0.4895% 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 →
±51.7%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, Wilson's Snipe in Prairie Hardwood Transition is projected to fall about 56% by 2029 — from 0.17 in 2024 to a central estimate of 0.07 (95% range 0.00–0.48). A 5-year backtest shows a typical error of ±51.7%, 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 →
20250.100.000.51
20260.090.000.50
20270.090.000.50
20280.080.000.49
20290.070.000.48

Routes In Prairie Hardwood Transition

Routes recording Wilson's Snipe in Prairie 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 →
Brook ParkMINNESOTA42018
Sherburne NrMINNESOTA42024
NashvilleMICHIGAN31975
PrincetonMINNESOTA32019
UnityWISCONSIN32024
ClintonvilleWISCONSIN31993
StetsonvilleWISCONSIN32024
Omro 2WISCONSIN32013
CoopersvilleMICHIGAN21984
Money CreekMINNESOTA22019
New LondonMINNESOTA22024
HolwayWISCONSIN21989
SaxevilleWISCONSIN21975
Oconto FallsWISCONSIN22005
OmroWISCONSIN21993
PardeevilleWISCONSIN22013
Fall RiverWISCONSIN21984
Mount HorebWISCONSIN21975
Buena VistaWISCONSIN22019
BriggsvilleWISCONSIN22019
BravoMICHIGAN11995
Big RapidsMICHIGAN11989
GalesburgMICHIGAN11968
No BradleyMICHIGAN12013
OlaMICHIGAN11978

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