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

Long-billed Curlew Population Trend in Wyoming

All statesShorebirds

Long-billed Curlew in Wyoming has surged: up 118% on the route-weighted index since 1981.

+118%Since 1981
39Routes In State
44Years

Notable Long-billed Curlew Trends in Wyoming

long arc increasecomputed index

Long-billed Curlew has surged in Wyoming: up 118% on the route-weighted index since 1981.

Long-billed Curlew Population Forecast in Wyoming

If the recent trend holds, Long-billed Curlew in Wyoming is projected to fall about 47% by 2029 — from 0.83 in 2024 to a central estimate of 0.44 (95% range 0.10–0.77). A 5-year backtest shows a typical error of ±44.5%, with 40% of held-out values landing inside the 95% band.

-47%Change by 2029
0.44Projected 2029 index
0.10–0.7795% range
±44.5%Backtest error
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 index95% low95% high
20250.410.080.75
20260.420.090.76
20270.430.090.76
20280.430.100.77
20290.440.100.77

Long-billed Curlew Survey Routes in Wyoming

Routes recording Long-billed Curlew in Wyoming.
Big Sandy3420241988
Lusk1220241982
Newcastle1120241988
Fontenelle620241988
Riverview620222014
Mtn View519831980
Gvnt Valley320031997
Soda Well320242007
Kaycee320142014
Ne Entrance220192019
Natrona219681968
Seely 2220042004
Clark220241991
Recluse220041990
Ryegrass220222000
Seely219901990
Upton220242024
Sussex220062006
Meadowdale219901984
Green River219811981
Elk Horn 2220242024
Dubois120081990
Bill119931993
Cumberland120232023
Yoder119891989

Long-billed Curlew Population Trend in Other States

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