Species · BCR 18 · BBS 2025 Release · 1966–2024
Pyrrhuloxia In Shortgrass Prairie
Pyrrhuloxia in Shortgrass Prairie has collapsed: down 80% on the route-weighted index since 1969.
-80%Since 1969
14Routes In Region
53Years
Notable Signals
long arc declinecomputed index
Pyrrhuloxia has collapsed in Shortgrass Prairie: down 80% on the route-weighted index since 1969.
Forecast
If the recent trend holds, Pyrrhuloxia in Shortgrass Prairie is projected to rise about 228% by 2029 — from 0.12 in 2024 to a central estimate of 0.39 (95% range 0.00–1.4). A 5-year backtest shows a typical error of ±347.6%, with 100% of held-out values landing inside the 95% band.
+228%Change by 2029
0.39Projected 2029 index
0.00–1.495% range
±347.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.43 | 0.00 | 1.5 |
| 2026 | 0.42 | 0.00 | 1.4 |
| 2027 | 0.41 | 0.00 | 1.4 |
| 2028 | 0.40 | 0.00 | 1.4 |
| 2029 | 0.39 | 0.00 | 1.4 |
Routes In Shortgrass Prairie
| Pecos | TEXAS | 112 | 2017 |
| Wink | TEXAS | 27 | 1986 |
| Kermit | TEXAS | 15 | 1999 |
| Saragosa | TEXAS | 6 | 2024 |
| San Simon | NEW-MEXICO | 5 | 2019 |
| Hobbs | NEW-MEXICO | 3 | 1994 |
| Mentone | TEXAS | 3 | 2015 |
| Rankin | TEXAS | 2 | 2024 |
| Stiles | TEXAS | 2 | 2022 |
| Midland | TEXAS | 2 | 2015 |
| Kermit 2 | TEXAS | 2 | 2024 |
| Cooley Lake | NEW-MEXICO | 1 | 2010 |
| Post | TEXAS | 1 | 2019 |
| Frankel City | TEXAS | 1 | 2022 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.