Species · BCR 23 · BBS 2025 Release · 1966–2024
Loggerhead Shrike In Prairie Hardwood Transition
Loggerhead Shrike in Prairie Hardwood Transition has collapsed: down 88% on the route-weighted index since 1968.
-88%Since 1968
26Routes In Region
23Years
Notable Signals
long arc declinecomputed index
Loggerhead Shrike has collapsed in Prairie Hardwood Transition: down 88% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Loggerhead Shrike in Prairie Hardwood Transition is projected to stay roughly flat through 2014, near 0.00 (95% range 0.00–0.10). A 5-year backtest shows a typical error of ±395.4%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2014
0.00Projected 2014 index
0.00–0.1095% range
±395.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2010 | 0.00 | 0.00 | 0.10 |
| 2011 | 0.00 | 0.00 | 0.10 |
| 2012 | 0.00 | 0.00 | 0.10 |
| 2013 | 0.00 | 0.00 | 0.10 |
| 2014 | 0.00 | 0.00 | 0.10 |
Routes In Prairie Hardwood Transition
| Prattville | MICHIGAN | 3 | 1969 |
| Chatfield | MINNESOTA | 2 | 1969 |
| Princeton | MINNESOTA | 2 | 1976 |
| Casco | WISCONSIN | 2 | 1999 |
| Guilford | ILLINOIS | 1 | 1990 |
| Coopersville | MICHIGAN | 1 | 2009 |
| Adrian | MICHIGAN | 1 | 1966 |
| Juniata | MICHIGAN | 1 | 1967 |
| Pettysville | MICHIGAN | 1 | 1978 |
| Allegan Wma | MICHIGAN | 1 | 2002 |
| Osseo | MINNESOTA | 1 | 1994 |
| Knapp | MINNESOTA | 1 | 1999 |
| Edwards | MINNESOTA | 1 | 1979 |
| Evergreen | MINNESOTA | 1 | 1968 |
| Le Center | MINNESOTA | 1 | 1996 |
| Glenwood | MINNESOTA | 1 | 2005 |
| Graytown | OHIO | 1 | 1971 |
| Bismark | OHIO | 1 | 1972 |
| Dresser | WISCONSIN | 1 | 1969 |
| Loraine | WISCONSIN | 1 | 1968 |
| Manawa | WISCONSIN | 1 | 1994 |
| N Freedom | WISCONSIN | 1 | 1978 |
| Pardeeville | WISCONSIN | 1 | 1969 |
| Fall River | WISCONSIN | 1 | 1969 |
| Pt Washingtn | WISCONSIN | 1 | 1972 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.