BirdAnalyst
Species · BCR 9 · BBS 2026 Release · 1966–2025

Wilson's Snipe In Great Basin

All regionsGreat BasinShorebirds

Wilson's Snipe in Great Basin has increased: up 40% on the route-weighted index since 1970.

+40%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 →
165Routes 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 Great Basin. See the full index history below.

Wilson's Snipe In Great Basin Population Forecast

If the recent trend holds, Wilson's Snipe in Great Basin is projected to rise about 14% by 2030 — from 1.6 in 2025 to a central estimate of 1.8 (95% range 0.03–3.5). A 5-year backtest shows a typical error of ±31.5%, with 100% of held-out values landing inside the 95% band.

+14%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 →
1.8Projected 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 →
0.03–3.595% 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 →
±31.5%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 Great Basin is projected to rise about 14% by 2030 — from 1.6 in 2025 to a central estimate of 1.8 (95% range 0.03–3.5). A 5-year backtest shows a typical error of ±31.5%, 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 →
20261.90.143.6
20271.90.113.6
20281.80.083.6
20291.80.053.6
20301.80.033.5

Routes In Great Basin

Routes recording Wilson's Snipe in Great Basin.
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 →
ZumwaltOREGON212005
BakerIDAHO202024
HarwoodWASHINGTON201997
LikelyCALIFORNIA192025
Fish LakeOREGON192025
SheavilleOREGON182025
Catlow RimOREGON152025
EwanWASHINGTON152019
PicaboIDAHO142017
EurekaNEVADA142009
Ruby ValleyNEVADA132001
Trout CreekOREGON132025
WapatoWASHINGTON132022
RanchograndeNEVADA122024
BlyOREGON122001
ChinchaloOREGON122025
Iron SpringsIDAHO112024
LakeviewOREGON102025
RavendaleCALIFORNIA92006
Davis CreekCALIFORNIA92025
Bly 2OREGON92025
PrincetonOREGON81985
AlmoIDAHO72019
Alvord LakeOREGON72025
LynnUTAH72025

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