Species · Utah · BBS 2025 Release · 1966–2024
Long-billed Curlew Population Trend in Utah
Long-billed Curlew in Utah has edged down: down 11% on the route-weighted index since 1970.
-11%Since 1970
32Routes In State
56Years
Notable Long-billed Curlew Trends in Utah
No notable trend signals for Long-billed Curlew in Utah. See the full index history below.
Long-billed Curlew Population Forecast in Utah
If the recent trend holds, Long-billed Curlew in Utah is projected to fall about 61% by 2029 — from 1.7 in 2024 to a central estimate of 0.68 (95% range 0.00–6.7). A 5-year backtest shows a typical error of ±55.1%, with 100% of held-out values landing inside the 95% band.
-61%Change by 2029
0.68Projected 2029 index
0.00–6.795% range
±55.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.96 | 0.00 | 7.0 |
| 2026 | 0.89 | 0.00 | 7.0 |
| 2027 | 0.82 | 0.00 | 6.9 |
| 2028 | 0.75 | 0.00 | 6.8 |
| 2029 | 0.68 | 0.00 | 6.7 |
Long-billed Curlew Survey Routes in Utah
| Snowville | 40 | 2024 | 1999 |
| Delta | 35 | 2021 | 1988 |
| Goshen | 15 | 2024 | 1968 |
| Bear River | 15 | 2023 | 1992 |
| Promontory | 13 | 2024 | 1969 |
| Randolph | 9 | 2024 | 1995 |
| Johnson Can | 8 | 2024 | 1991 |
| Jericho Junction | 7 | 2024 | 1997 |
| Pine Creek | 6 | 2023 | 2011 |
| Beryl | 6 | 2019 | 1998 |
| Fairfield | 5 | 2024 | 1987 |
| Timpie Spg | 4 | 2003 | 1978 |
| Fayette | 4 | 2019 | 1992 |
| Iron Springs 2 | 4 | 2024 | 2024 |
| Gold Hill | 3 | 2022 | 1988 |
| Saleratus Cr | 2 | 2015 | 1995 |
| Oak City | 2 | 2023 | 1979 |
| Vernon | 2 | 2019 | 1992 |
| Leamington | 2 | 2017 | 1995 |
| Salt Springs | 1 | 2023 | 1988 |
| Neponset Res | 1 | 2012 | 1995 |
| E. Bear Lake | 1 | 1998 | 1995 |
| Woodruff | 1 | 2011 | 2011 |
| Beaver | 1 | 2019 | 2012 |
| Iron Springs | 1 | 2023 | 2018 |
Long-billed Curlew Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.