Species · BCR 17 · BBS 2025 Release · 1966–2024
Blue Grosbeak In Badlands and Prairies
Blue Grosbeak in Badlands and Prairies has held roughly steady: down 8% on the route-weighted index since 1969.
-8%Since 1969
35Routes In Region
55Years
Notable Signals
No notable trend signals for Blue Grosbeak in Badlands and Prairies. See the full index history below.
Forecast
If the recent trend holds, Blue Grosbeak in Badlands and Prairies is projected to fall about 77% by 2029 — from 0.19 in 2024 to a central estimate of 0.04 (95% range 0.00–0.48). A 5-year backtest shows a typical error of ±113%, with 60% of held-out values landing inside the 95% band.
-77%Change by 2029
0.04Projected 2029 index
0.00–0.4895% range
±113%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.06 | 0.00 | 0.50 |
| 2026 | 0.06 | 0.00 | 0.49 |
| 2027 | 0.05 | 0.00 | 0.49 |
| 2028 | 0.05 | 0.00 | 0.48 |
| 2029 | 0.04 | 0.00 | 0.48 |
Routes In Badlands and Prairies
| Crookston | NEBRASKA | 10 | 2024 |
| Badlands | SOUTH-DAKOTA | 7 | 2023 |
| White River | SOUTH-DAKOTA | 6 | 2014 |
| Solen | NORTH-DAKOTA | 5 | 2023 |
| Eagle Butte | SOUTH-DAKOTA | 4 | 2011 |
| Railroad Butte | SOUTH-DAKOTA | 4 | 2022 |
| Dwyer | WYOMING | 4 | 1995 |
| Winner | SOUTH-DAKOTA | 3 | 2023 |
| Rosebud | SOUTH-DAKOTA | 3 | 2011 |
| Rockyford | SOUTH-DAKOTA | 2 | 2023 |
| Owanka | SOUTH-DAKOTA | 2 | 1975 |
| Cedar Pass | SOUTH-DAKOTA | 2 | 2023 |
| Fort Pierre | SOUTH-DAKOTA | 2 | 2023 |
| Reva | SOUTH-DAKOTA | 2 | 1987 |
| Cottonwood | SOUTH-DAKOTA | 2 | 1996 |
| Oglala Nat. Grass. | NEBRASKA | 1 | 2023 |
| Dunn Center | NORTH-DAKOTA | 1 | 2016 |
| Zap | NORTH-DAKOTA | 1 | 2017 |
| Bentley | NORTH-DAKOTA | 1 | 2024 |
| Glen Ullin | NORTH-DAKOTA | 1 | 2021 |
| Carson | NORTH-DAKOTA | 1 | 2022 |
| Chamberlain | SOUTH-DAKOTA | 1 | 2011 |
| Ft Thompson | SOUTH-DAKOTA | 1 | 2011 |
| Laplant | SOUTH-DAKOTA | 1 | 1975 |
| Promise | SOUTH-DAKOTA | 1 | 2013 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.