Species · BCR 18 · BBS 2025 Release · 1966–2024
Bullock's Oriole In Shortgrass Prairie
Bullock's Oriole in Shortgrass Prairie has surged: up 83% on the route-weighted index since 1969.
+83%Since 1969
126Routes In Region
57Years
Notable Signals
long arc increasecomputed index
Bullock's Oriole has surged in Shortgrass Prairie: up 83% on the route-weighted index since 1969.
Forecast
If the recent trend holds, Bullock's Oriole in Shortgrass Prairie is projected to rise about 28% by 2029 — from 3.3 in 2024 to a central estimate of 4.3 (95% range 3.0–5.6). A 5-year backtest shows a typical error of ±42.3%, with 40% of held-out values landing inside the 95% band.
+28%Change by 2029
4.3Projected 2029 index
3.0–5.695% range
±42.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 4.2 | 2.9 | 5.5 |
| 2026 | 4.2 | 2.9 | 5.5 |
| 2027 | 4.2 | 2.9 | 5.5 |
| 2028 | 4.2 | 2.9 | 5.5 |
| 2029 | 4.3 | 3.0 | 5.6 |
Routes In Shortgrass Prairie
| Cactus | TEXAS | 27 | 2021 |
| Crowley | COLORADO | 24 | 2024 |
| Plains | TEXAS | 19 | 2024 |
| Lingle | WYOMING | 18 | 2024 |
| Doyle Bridge | COLORADO | 16 | 1997 |
| Arsenal | COLORADO | 16 | 2015 |
| Arsenal 2 | COLORADO | 15 | 2024 |
| Campo | COLORADO | 14 | 2019 |
| Neegrande | COLORADO | 14 | 2024 |
| Mica Butte | COLORADO | 12 | 1987 |
| Doyle Bridge 2 | COLORADO | 12 | 2023 |
| Sedan | NEW-MEXICO | 12 | 2024 |
| Pantex | TEXAS | 12 | 2019 |
| Maxwell | NEW-MEXICO | 11 | 2024 |
| Variadero | NEW-MEXICO | 10 | 2022 |
| Rankin | TEXAS | 10 | 2023 |
| Pep | NEW-MEXICO | 9 | 2024 |
| Sabinoso | NEW-MEXICO | 9 | 2021 |
| Felt | OKLAHOMA | 9 | 2024 |
| Pecos | TEXAS | 9 | 2017 |
| Kiowa | COLORADO | 8 | 2018 |
| Boyero | COLORADO | 8 | 2017 |
| Trinchera | COLORADO | 8 | 2022 |
| Dalton | NEBRASKA | 8 | 2024 |
| Maljamar | NEW-MEXICO | 8 | 1977 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.