Species · Michigan · BBS 2025 Release · 1966–2024
Northern Parula Population Trend in Michigan
Northern Parula in Michigan has surged: up 14× on the route-weighted index since 1968.
14×Since 1968
53Routes In State
56Years
Notable Northern Parula Trends in Michigan
long arc increasecomputed index
Northern Parula has surged in Michigan: up 14× on the route-weighted index since 1968.
Northern Parula Population Forecast in Michigan
If the recent trend holds, Northern Parula in Michigan is projected to rise about 54% by 2029 — from 0.92 in 2024 to a central estimate of 1.4 (95% range 0.83–2.0). A 5-year backtest shows a typical error of ±28.3%, with 80% of held-out values landing inside the 95% band.
+54%Change by 2029
1.4Projected 2029 index
0.83–2.095% range
±28.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.3 | 0.73 | 1.9 |
| 2026 | 1.3 | 0.76 | 1.9 |
| 2027 | 1.4 | 0.78 | 1.9 |
| 2028 | 1.4 | 0.81 | 2.0 |
| 2029 | 1.4 | 0.83 | 2.0 |
Northern Parula Survey Routes in Michigan
| Marenisco | 10 | 2019 | 1981 |
| Gibbs City | 10 | 2024 | 1979 |
| Imp Lake | 10 | 2019 | 1992 |
| Bergland | 9 | 2022 | 1979 |
| Ishpeming | 8 | 2023 | 1983 |
| Shingleton | 6 | 2024 | 1967 |
| Muskallonge | 6 | 2024 | 1966 |
| Crystal Fls | 4 | 2024 | 1989 |
| Maple Grove | 4 | 2024 | 1971 |
| Cluster Lakes | 4 | 2009 | 2007 |
| Ontonagon | 3 | 2019 | 1985 |
| Brocky Lake | 3 | 2024 | 2004 |
| Raco | 3 | 2024 | 2009 |
| Bootjack | 2 | 2023 | 1971 |
| Herman | 2 | 2022 | 1983 |
| Seney Nwr | 2 | 2017 | 1992 |
| Gilchrist | 2 | 2021 | 1985 |
| Gooseneck | 2 | 2010 | 2008 |
| Fowlerville | 2 | 1986 | 1983 |
| Sidnaw | 2 | 2024 | 1993 |
| Harrietta | 1 | 2016 | 2016 |
| Ned Lake | 1 | 2024 | 1986 |
| Chippewa Lk. | 1 | 2014 | 2014 |
| Cunard | 1 | 1987 | 1978 |
| Creighton | 1 | 2005 | 1986 |
Northern Parula Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.