Species · BCR 29 · BBS 2025 Release · 1966–2024
Loggerhead Shrike In Piedmont
Loggerhead Shrike in Piedmont has collapsed: down 93% on the route-weighted index since 1968.
-93%Since 1968
77Routes In Region
58Years
Notable Signals
long arc declinecomputed index
Loggerhead Shrike has collapsed in Piedmont: down 93% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Loggerhead Shrike in Piedmont is projected to fall about 100% by 2029 — from 0.13 in 2024 to a central estimate of 0.00 (95% range 0.00–0.71). A 5-year backtest shows a typical error of ±352.7%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–0.7195% range
±352.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.71 |
| 2026 | 0.00 | 0.00 | 0.71 |
| 2027 | 0.00 | 0.00 | 0.71 |
| 2028 | 0.00 | 0.00 | 0.71 |
| 2029 | 0.00 | 0.00 | 0.71 |
Routes In Piedmont
| Owings | SOUTH-CAROLINA | 11 | 1998 |
| Stockbridge | GEORGIA | 4 | 2023 |
| Hebron | GEORGIA | 4 | 2014 |
| Cherryville | NORTH-CAROLINA | 4 | 1968 |
| Wilgrove | NORTH-CAROLINA | 4 | 2010 |
| Rutledge | GEORGIA | 3 | 2024 |
| Carrs Station | GEORGIA | 3 | 2024 |
| Brodnax | VIRGINIA | 3 | 1998 |
| Millerville | ALABAMA | 2 | 1996 |
| Wedowee | ALABAMA | 2 | 2004 |
| Fairplay | GEORGIA | 2 | 1966 |
| Grovetown | GEORGIA | 2 | 2005 |
| Holly Sprs | GEORGIA | 2 | 1977 |
| Lincolnton 2 | GEORGIA | 2 | 2024 |
| Saxapahaw | NORTH-CAROLINA | 2 | 1987 |
| Oakboro | NORTH-CAROLINA | 2 | 2014 |
| Madison | NORTH-CAROLINA | 2 | 1976 |
| Waco | NORTH-CAROLINA | 2 | 2022 |
| Hulls Xroads | NORTH-CAROLINA | 2 | 1997 |
| Durham | NORTH-CAROLINA | 2 | 1995 |
| Boiling Spgs | SOUTH-CAROLINA | 2 | 1975 |
| Joanna | SOUTH-CAROLINA | 2 | 2023 |
| Amherst | VIRGINIA | 2 | 1977 |
| Concord | VIRGINIA | 2 | 1981 |
| Mannboro | VIRGINIA | 2 | 1982 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.