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

Wilson's Snipe Population Trend in Montana

All statesShorebirds

Wilson's Snipe in Montana has increased: up 32% on the route-weighted index since 1970.

+32%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 →
106Routes 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 →
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 Wilson's Snipe Trends in MontanaNotable 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 Montana. See the full index history below.

Wilson's Snipe Population Forecast in Montana

If the recent trend holds, Wilson's Snipe in Montana is projected to fall about 14% by 2029 — from 4.8 in 2024 to a central estimate of 4.1 (95% range 2.0–6.2). A 5-year backtest shows a typical error of ±12.4%, with 100% of held-out values landing inside the 95% band.

-14%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 →
4.1Projected 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 →
2.0–6.295% 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 →
±12.4%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 Montana is projected to fall about 14% by 2029 — from 4.8 in 2024 to a central estimate of 4.1 (95% range 2.0–6.2). A 5-year backtest shows a typical error of ±12.4%, 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 →
20254.22.16.3
20264.22.16.3
20274.22.16.3
20284.22.06.3
20294.12.06.2

Wilson's Snipe Survey Routes in Montana

Routes recording Wilson's Snipe in Montana.
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 →
Clyde Park3120242018
Pablo Res.2520241995
Beaverhead2320241973
Elliston2120241968
Two Dot1920241976
Heart Butte1920242015
Augusta1820241976
Cleveland1520241979
Sula1520241977
Raynesford1520242016
St Mary1420081969
Philipsburg1320242015
Fort Logan1320242018
Harlem1220211980
Willow Creek1219811972
Glen1220241977
Highwood1120241969
East Glacier Park1120242015
Glentana1120242015
St. Mary 2920242009
Chinook920242015
Wolf Creek920222015
Lindsay920242015
Whitlash820242009
Freeman Creek820162015

Wilson's Snipe Population Trend in Other States

alaskaarizonacaliforniacoloradoidahoillinoisiowamainemassachusettsmichiganminnesotanebraskanevadanew-hampshirenew-mexiconew-yorknorth-dakotaohiooregonpennsylvaniasouth-dakotautahvermontwashingtonwisconsinwyoming

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