Species · BCR 18 · BBS 2025 Release · 1966–2024
Black-throated Sparrow In Shortgrass Prairie
Black-throated Sparrow in Shortgrass Prairie has collapsed: down 90% on the route-weighted index since 1969.
-90%Since 1969
23Routes In Region
52Years
Notable Signals
long arc declinecomputed index
Black-throated Sparrow has collapsed in Shortgrass Prairie: down 90% on the route-weighted index since 1969.
Forecast
If the recent trend holds, Black-throated Sparrow in Shortgrass Prairie is projected to rise about 195% by 2029 — from 0.08 in 2024 to a central estimate of 0.25 (95% range 0.00–0.96). A 5-year backtest shows a typical error of ±216.5%, with 100% of held-out values landing inside the 95% band.
+195%Change by 2029
0.25Projected 2029 index
0.00–0.9695% range
±216.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.27 | 0.00 | 0.97 |
| 2026 | 0.26 | 0.00 | 0.97 |
| 2027 | 0.26 | 0.00 | 0.96 |
| 2028 | 0.25 | 0.00 | 0.96 |
| 2029 | 0.25 | 0.00 | 0.96 |
Routes In Shortgrass Prairie
| Pecos | TEXAS | 82 | 2017 |
| Mentone | TEXAS | 24 | 2015 |
| Wink | TEXAS | 9 | 1986 |
| Tucumcari | NEW-MEXICO | 8 | 1975 |
| Kermit 2 | TEXAS | 6 | 2023 |
| Villegreen | COLORADO | 4 | 1998 |
| Kermit | TEXAS | 4 | 1999 |
| Sabinoso | NEW-MEXICO | 3 | 2021 |
| Cooley Lake | NEW-MEXICO | 2 | 2021 |
| San Simon | NEW-MEXICO | 2 | 2018 |
| Rankin | TEXAS | 2 | 2024 |
| Frankel City | TEXAS | 2 | 2015 |
| Cone Mtn | COLORADO | 1 | 2024 |
| Doyle Bridge | COLORADO | 1 | 1997 |
| Maljamar | NEW-MEXICO | 1 | 1975 |
| Variadero | NEW-MEXICO | 1 | 2022 |
| Rosebud | NEW-MEXICO | 1 | 2024 |
| Pep | NEW-MEXICO | 1 | 2008 |
| Logan | NEW-MEXICO | 1 | 2024 |
| Channing | TEXAS | 1 | 1991 |
| Stiles | TEXAS | 1 | 2024 |
| Tenmile | TEXAS | 1 | 2017 |
| Saragosa | TEXAS | 1 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.