BirdAnalyst
Species · BCR 10 · BBS 2025 Release · 1966–2024

Wilson's Snipe In Northern Rockies

All regionsNorthern RockiesShorebirds

Wilson's Snipe in Northern Rockies has edged down: down 24% on the route-weighted index since 1970.

-24%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 →
190Routes 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 →
56YearsYears 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 2029, near 3.5 (95% range 1.7–5.4). A 5-year backtest shows a typical error of ±5.6%, with 100% of held-out values landing inside the 95% band.

-7%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 →
3.5Projected 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 →
1.7–5.495% 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 →
±5.6%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 2029, near 3.5 (95% range 1.7–5.4). A 5-year backtest shows a typical error of ±5.6%, with 100% of held-out values landing inside the 95% band.19682029
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 →
20253.81.95.6
20263.71.95.5
20273.61.85.5
20283.61.85.4
20293.51.75.4

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
Clyde ParkMONTANA312024
RiversideWYOMING312024
Pablo Res.MONTANA252024
BoulderWYOMING252024
Mtn ViewWYOMING242024
BeaverheadMONTANA232024
EllistonMONTANA212024
RandolphUTAH212024
Heart ButteMONTANA192024
AugustaMONTANA182024
HarmonyWYOMING182023
Nezperce NfIDAHO161999
SulaMONTANA152024
RaynesfordMONTANA152024
St MaryMONTANA142008
SpartaOREGON142001
YellowstoneWYOMING142022
PhilipsburgMONTANA132024
Fort LoganMONTANA132024
Willow CreekMONTANA121981
GlenMONTANA122024
Summit PrOREGON122024
East Glacier ParkMONTANA112024
BridgeportOREGON112022

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