BirdAnalyst
Species · BCR 10 · BBS 2026 Release · 1966–2025

Wilson's Snipe In Northern Rockies

All regionsNorthern RockiesShorebirds

Wilson's Snipe in Northern Rockies has declined: down 31% on the route-weighted index since 1970.

-31%Since 1970TrendPercent 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 →
191Routes 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 →

No notable trend signals for Wilson's Snipe in Northern Rockies. See the full index history below.

Wilson's Snipe In Northern Rockies Population Forecast

If the recent trend holds, Wilson's Snipe in Northern Rockies is projected to stay roughly flat through 2030, near 3.4 (95% range 1.6–5.2). A 5-year backtest shows a typical error of ±9.4%, with 100% of held-out values landing inside the 95% band.

+9%Change by 2030TrendPercent 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 →
3.4Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
1.6–5.295% 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 →
±9.4%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 Northern Rockies is projected to stay roughly flat through 2030, near 3.4 (95% range 1.6–5.2). A 5-year backtest shows a typical error of ±9.4%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20263.61.85.4
20273.61.85.4
20283.51.75.3
20293.51.75.3
20303.41.65.2

Routes In Northern Rockies

Routes recording Wilson's Snipe in Northern Rockies.
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 →
CascadeIDAHO351984
BridgeportOREGON352025
RiversideWYOMING172025
Nezperce NfIDAHO161999
EllistonMONTANA162025
BoulderWYOMING162025
SulaMONTANA152024
RaynesfordMONTANA152025
Clyde ParkMONTANA152025
Fort LoganMONTANA152025
CentervilleIDAHO142025
St MaryMONTANA142008
RandolphUTAH142025
Big SandyWYOMING142025
Pablo Res.MONTANA132025
Willow CreekMONTANA121981
Red RockMONTANA122025
SpartaOREGON122025
VictorMONTANA112025
Summit PrOREGON112025
MidvaleWYOMING112024
LayCOLORADO102025
Cape HornIDAHO102025
AugustaMONTANA102025
PhilipsburgMONTANA102025

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.