Species · Wyoming · BBS 2025 Release · 1966–2024
Cassin's Kingbird Population Trend in Wyoming
Cassin's Kingbird in Wyoming has held roughly steady: up 2% on the route-weighted index since 1980.
+2%Since 1980
17Routes In State
27Years
Notable Cassin's Kingbird Trends in Wyoming
No notable trend signals for Cassin's Kingbird in Wyoming. See the full index history below.
Cassin's Kingbird Population Forecast in Wyoming
If the recent trend holds, Cassin's Kingbird in Wyoming is projected to fall about 40% by 2029 — from 0.10 in 2024 to a central estimate of 0.06 (95% range 0.00–0.17). A 5-year backtest shows a typical error of ±158.8%, with 100% of held-out values landing inside the 95% band.
-40%Change by 2029
0.06Projected 2029 index
0.00–0.1795% range
±158.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.06 | 0.00 | 0.17 |
| 2026 | 0.06 | 0.00 | 0.17 |
| 2027 | 0.06 | 0.00 | 0.17 |
| 2028 | 0.06 | 0.00 | 0.17 |
| 2029 | 0.06 | 0.00 | 0.17 |
Cassin's Kingbird Survey Routes in Wyoming
| Meadowdale | 5 | 1995 | 1989 |
| Lingle | 4 | 2024 | 1995 |
| Redbird | 3 | 1988 | 1969 |
| Raven | 2 | 2024 | 2022 |
| Otto | 1 | 2017 | 2017 |
| Kaycee | 1 | 2024 | 2024 |
| Fox Park | 1 | 2001 | 1992 |
| Schoonover | 1 | 2001 | 1999 |
| Arvada | 1 | 2024 | 1998 |
| Bill | 1 | 2018 | 2018 |
| Recluse | 1 | 2022 | 2022 |
| Seely | 1 | 1995 | 1995 |
| Upton | 1 | 2021 | 2021 |
| Cheyenne | 1 | 2022 | 2011 |
| Pine Bluff | 1 | 2016 | 2008 |
| Gvnt Valley | 1 | 2003 | 2003 |
| Hampshire | 1 | 2024 | 2018 |
Cassin's Kingbird Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.