Species · BCR 22 · BBS 2025 Release · 1966–2024
Loggerhead Shrike In Eastern Tallgrass Prairie
Loggerhead Shrike in Eastern Tallgrass Prairie has collapsed: down 88% on the route-weighted index since 1968.
-88%Since 1968
165Routes In Region
58Years
Notable Signals
long arc declinecomputed index
Loggerhead Shrike has collapsed in Eastern Tallgrass Prairie: down 87% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Loggerhead Shrike in Eastern Tallgrass Prairie is projected to fall about 100% by 2029 — from 0.18 in 2024 to a central estimate of 0.00 (95% range 0.00–0.61). A 5-year backtest shows a typical error of ±179.8%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–0.6195% range
±179.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.61 |
| 2026 | 0.00 | 0.00 | 0.61 |
| 2027 | 0.00 | 0.00 | 0.61 |
| 2028 | 0.00 | 0.00 | 0.61 |
| 2029 | 0.00 | 0.00 | 0.61 |
Routes In Eastern Tallgrass Prairie
| Ash Creek | MINNESOTA | 53 | 1991 |
| Sni Mills | MISSOURI | 8 | 1990 |
| Bolckow | MISSOURI | 8 | 1992 |
| Trading Post | KANSAS | 7 | 2024 |
| Thrall | KANSAS | 6 | 1970 |
| Melrose | KANSAS | 5 | 2021 |
| Peoria | OKLAHOMA | 5 | 2022 |
| Wainwright | OKLAHOMA | 5 | 2013 |
| Melrose | ILLINOIS | 4 | 1986 |
| Rock Valley | IOWA | 4 | 1982 |
| Chandlervill | ILLINOIS | 3 | 1973 |
| Athensville | ILLINOIS | 3 | 1982 |
| College Spgs | IOWA | 3 | 2004 |
| Pierson | IOWA | 3 | 2003 |
| Galesburg | KANSAS | 3 | 2024 |
| Lapland | KANSAS | 3 | 2018 |
| Longton | KANSAS | 3 | 2021 |
| Filley | MISSOURI | 3 | 2024 |
| Sticklervill | MISSOURI | 3 | 2024 |
| Laclede | MISSOURI | 3 | 2024 |
| New Point | MISSOURI | 3 | 1995 |
| Collinsville | OKLAHOMA | 3 | 2021 |
| Mill Creek | ILLINOIS | 2 | 1990 |
| Holcomb | ILLINOIS | 2 | 1991 |
| Compton | ILLINOIS | 2 | 1982 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.