Species · Michigan · BBS 2025 Release · 1966–2024
Ring-billed Gull Population Trend in Michigan
Ring-billed Gull in Michigan has surged: up 47× on the route-weighted index since 1969.
47×Since 1969
76Routes In State
56Years
Notable Ring-billed Gull Trends in Michigan
long arc increasecomputed index
Ring-billed Gull has surged in Michigan: up 47× on the route-weighted index since 1969.
Ring-billed Gull Population Forecast in Michigan
If the recent trend holds, Ring-billed Gull in Michigan is projected to rise about 130% by 2029 — from 5.2 in 2024 to a central estimate of 12 (95% range 0.00–25). A 5-year backtest shows a typical error of ±251.3%, with 100% of held-out values landing inside the 95% band.
+130%Change by 2029
12Projected 2029 index
0.00–2595% range
±251.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 12 | 0.00 | 25 |
| 2026 | 12 | 0.00 | 25 |
| 2027 | 12 | 0.00 | 25 |
| 2028 | 12 | 0.00 | 25 |
| 2029 | 12 | 0.00 | 25 |
Ring-billed Gull Survey Routes in Michigan
| Lawrence | 132 | 2024 | 2018 |
| Cathro | 116 | 2016 | 1967 |
| Beaver Lake | 78 | 2011 | 2011 |
| Prattville | 59 | 2004 | 1987 |
| Hamtramck | 59 | 1984 | 1978 |
| Pickford | 58 | 2024 | 1973 |
| Bootjack | 54 | 2023 | 1986 |
| St Charles | 48 | 2019 | 1970 |
| Traverse Cty | 37 | 1985 | 1978 |
| Lake City | 32 | 2014 | 2000 |
| Herman | 22 | 2015 | 1983 |
| Allegan Wma | 21 | 2010 | 1994 |
| New Troy | 20 | 2024 | 1997 |
| Herron | 17 | 2016 | 2011 |
| Isabella 2 | 17 | 2023 | 2017 |
| Adair | 16 | 1990 | 1985 |
| Coopersville | 15 | 2024 | 1991 |
| Riggsville | 15 | 2019 | 1968 |
| Hubbard Lake | 15 | 1996 | 1976 |
| Adrian | 14 | 2017 | 1987 |
| Walloon Lake | 11 | 2004 | 1980 |
| New Buffalo | 11 | 2013 | 1993 |
| Ontonagon | 7 | 2019 | 2010 |
| Tahquamenon | 6 | 2006 | 1980 |
| Skeels | 6 | 2007 | 2006 |
Ring-billed Gull Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.