Species · BCR 18 · BBS 2025 Release · 1966–2024
Common Poorwill In Shortgrass Prairie
Common Poorwill in Shortgrass Prairie has collapsed: down 81% on the route-weighted index since 1972.
-81%Since 1972
19Routes In Region
34Years
Notable Signals
long arc declinecomputed index
Common Poorwill has collapsed in Shortgrass Prairie: down 81% on the route-weighted index since 1972.
Forecast
If the recent trend holds, Common Poorwill in Shortgrass Prairie is projected to stay roughly flat through 2027, near 0.01 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±56.6%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2027
0.01Projected 2027 index
0.00–0.0795% range
±56.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2023 | 0.01 | 0.00 | 0.07 |
| 2024 | 0.01 | 0.00 | 0.07 |
| 2025 | 0.01 | 0.00 | 0.07 |
| 2026 | 0.01 | 0.00 | 0.07 |
| 2027 | 0.01 | 0.00 | 0.07 |
Routes In Shortgrass Prairie
| Mentone | TEXAS | 9 | 2004 |
| Sabinoso | NEW-MEXICO | 3 | 2012 |
| Crawford | NEBRASKA | 2 | 1996 |
| Farley | NEW-MEXICO | 2 | 2003 |
| Wagon Mound | NEW-MEXICO | 2 | 1978 |
| Briggsdale | COLORADO | 1 | 1968 |
| Kiowa | COLORADO | 1 | 2013 |
| Mica Butte | COLORADO | 1 | 1982 |
| Gilpin | COLORADO | 1 | 1971 |
| Cone Mtn | COLORADO | 1 | 2016 |
| Pine Ridge | NEBRASKA | 1 | 2022 |
| Cooley Lake | NEW-MEXICO | 1 | 1976 |
| Variadero | NEW-MEXICO | 1 | 2019 |
| Clovis | NEW-MEXICO | 1 | 2016 |
| Clear Lake | OKLAHOMA | 1 | 2016 |
| Frankel City | TEXAS | 1 | 2013 |
| Stiles | TEXAS | 1 | 2009 |
| Claytonville | TEXAS | 1 | 2022 |
| Kermit 2 | TEXAS | 1 | 2007 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.