Species · Michigan · BBS 2025 Release · 1966–2024
Hermit Thrush Population Trend in Michigan
Hermit Thrush in Michigan has risen sharply: up 72% on the route-weighted index since 1968.
+72%Since 1968
68Routes In State
58Years
Notable Hermit Thrush Trends in Michigan
long arc increasecomputed index
Hermit Thrush has risen sharply in Michigan: up 72% on the route-weighted index since 1968.
Hermit Thrush Population Forecast in Michigan
If the recent trend holds, Hermit Thrush in Michigan is projected to rise about 49% by 2029 — from 6.6 in 2024 to a central estimate of 9.8 (95% range 6.3–13). A 5-year backtest shows a typical error of ±66.3%, with 20% of held-out values landing inside the 95% band.
+49%Change by 2029
9.8Projected 2029 index
6.3–1395% range
±66.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 9.3 | 5.8 | 13 |
| 2026 | 9.4 | 6.0 | 13 |
| 2027 | 9.5 | 6.1 | 13 |
| 2028 | 9.6 | 6.2 | 13 |
| 2029 | 9.8 | 6.3 | 13 |
Hermit Thrush Survey Routes in Michigan
| Betchler Lks | 54 | 2024 | 1992 |
| Sidnaw | 44 | 2024 | 1993 |
| Gooseneck | 37 | 2010 | 2008 |
| Cluster Lakes | 34 | 2010 | 2006 |
| Gibbs City | 27 | 2024 | 1979 |
| Brocky Lake | 27 | 2024 | 1980 |
| Ensign | 26 | 2010 | 2006 |
| Muskallonge | 25 | 2024 | 1966 |
| Pine River | 25 | 2021 | 1992 |
| Scott'S Marsh | 25 | 2010 | 2006 |
| Big Island Lake | 25 | 2010 | 2008 |
| Seney Nwr | 20 | 2024 | 1992 |
| Raco | 18 | 2024 | 1971 |
| Marenisco | 17 | 2019 | 1981 |
| Red Oak | 16 | 2022 | 1979 |
| Creighton | 15 | 2023 | 1978 |
| Brush Creek | 14 | 2016 | 1974 |
| Wilson | 13 | 2010 | 1966 |
| Hiawatha Nf | 13 | 2024 | 1992 |
| Cunard | 11 | 2021 | 1973 |
| Frederic 2 | 11 | 2017 | 2004 |
| Sand Lake | 11 | 2024 | 1978 |
| Isabella 2 | 11 | 2024 | 2013 |
| Frederic | 9 | 2003 | 1971 |
| Crystal Fls | 8 | 2024 | 1982 |
Hermit Thrush Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.