BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

Wilson's Snipe In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauShorebirds

Wilson's Snipe in Southern Rockies / Colorado Plateau has surged: up 167% on the route-weighted index since 1970.

+167%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 →
128Routes 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 →

long arc increasecomputed 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 surged in Southern Rockies / Colorado Plateau: up 167% on the route-weighted index since 1970.

Wilson's Snipe In Southern Rockies / Colorado Plateau Population Forecast

If the recent trend holds, Wilson's Snipe in Southern Rockies / Colorado Plateau is projected to rise about 86% by 2029 — from 0.85 in 2024 to a central estimate of 1.6 (95% range 0.00–3.3). A 5-year backtest shows a typical error of ±55.1%, with 100% of held-out values landing inside the 95% band.

+86%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 →
1.6Projected 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 →
0.00–3.395% 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 →
±55.1%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 Southern Rockies / Colorado Plateau is projected to rise about 86% by 2029 — from 0.85 in 2024 to a central estimate of 1.6 (95% range 0.00–3.3). A 5-year backtest shows a typical error of ±55.1%, 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 →
20251.60.003.4
20261.60.003.4
20271.60.003.4
20281.60.003.4
20291.60.003.3

Routes In Southern Rockies / Colorado Plateau

Routes recording Wilson's Snipe in Southern Rockies / Colorado Plateau.
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 →
WaldenCOLORADO192024
CastletonCOLORADO122024
YampaCOLORADO112023
BufordCOLORADO102024
DoylevilleCOLORADO92024
PowderhornCOLORADO82023
Fox ParkWYOMING72024
Owl Creek PassCOLORADO62024
Uintah NfUTAH61994
ParlinCOLORADO52023
TincupCOLORADO52024
Gribbles PrkCOLORADO52024
WarbonnetWYOMING52019
AlamosaCOLORADO42024
San LuisCOLORADO41999
PaoniaCOLORADO42024
Steamboat L.COLORADO42024
HeeneyCOLORADO42019
Ant Flat-Ogden CanUTAH42023
WellingtonUTAH42001
MoffatCOLORADO32024
DoloresCOLORADO31987
GuffeyCOLORADO32017
Buffalo ParkCOLORADO32023
Ragged Mtn.COLORADO32012

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