Species · Idaho · BBS 2025 Release · 1966–2024
American Coot Population Trend in Idaho
American Coot in Idaho has fallen sharply: down 62% on the route-weighted index since 1970.
-62%Since 1970
30Routes In State
56Years
Notable American Coot Trends in Idaho
long arc declinecomputed index
American Coot has fallen sharply in Idaho: down 62% on the route-weighted index since 1970.
American Coot Population Forecast in Idaho
If the recent trend holds, American Coot in Idaho is projected to fall about 26% by 2029 — from 1.6 in 2024 to a central estimate of 1.1 (95% range 0.00–3.8). A 5-year backtest shows a typical error of ±99.1%, with 100% of held-out values landing inside the 95% band.
-26%Change by 2029
1.1Projected 2029 index
0.00–3.895% range
±99.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.2 | 0.00 | 3.9 |
| 2026 | 1.2 | 0.00 | 3.9 |
| 2027 | 1.2 | 0.00 | 3.9 |
| 2028 | 1.2 | 0.00 | 3.9 |
| 2029 | 1.1 | 0.00 | 3.8 |
American Coot Survey Routes in Idaho
| Glenns Ferry | 50 | 1969 | 1968 |
| Naples | 23 | 2024 | 1973 |
| Kyle Canyon | 13 | 1996 | 1996 |
| Iron Springs | 13 | 2024 | 1988 |
| Lolo Pass | 8 | 2001 | 2000 |
| Cabarton | 5 | 2023 | 1985 |
| Blackft Res | 4 | 1999 | 1984 |
| Springfield | 4 | 2014 | 1969 |
| Daniels Res | 4 | 2017 | 1991 |
| Bates | 3 | 2002 | 2002 |
| Cedar Hill | 3 | 2024 | 1999 |
| Cascade | 2 | 1973 | 1973 |
| Acequia | 2 | 2003 | 1979 |
| Sawtooth Cty | 2 | 1999 | 1999 |
| Mivoden | 1 | 2004 | 1977 |
| Gifford | 1 | 1995 | 1995 |
| Baker | 1 | 2016 | 2007 |
| Challis | 1 | 1981 | 1981 |
| Dubois | 1 | 2004 | 1978 |
| Blacks Creek | 1 | 2005 | 1971 |
| Triangle | 1 | 2021 | 1985 |
| Magic Mtn | 1 | 2022 | 1991 |
| Henry | 1 | 1981 | 1981 |
| Crane Creek | 1 | 2004 | 1994 |
| Sunbeam | 1 | 2016 | 2016 |
American Coot Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.