Species · Montana · BBS 2025 Release · 1966–2024
Hooded Merganser Population Trend in Montana
Hooded Merganser in Montana has risen sharply: up 67% on the route-weighted index since 1996.
+67%Since 1996
9Routes In State
16Years
Notable Hooded Merganser Trends in Montana
No notable trend signals for Hooded Merganser in Montana. See the full index history below.
Hooded Merganser Survey Routes in Montana
| Noxon | 5 | 2019 | 2016 |
| Kalispell | 2 | 2015 | 1998 |
| Glen | 2 | 2009 | 1996 |
| Willow Creek 2 | 2 | 1994 | 1994 |
| Two Dot | 2 | 2014 | 2014 |
| Ninemile | 1 | 2024 | 2024 |
| Reed Point | 1 | 2010 | 2010 |
| Great Falls | 1 | 2002 | 2002 |
| Elliston | 1 | 1991 | 1991 |
Hooded Merganser Population Trend in Other States
alabamaalaskaarkansascoloradoconnecticutidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-yorknorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontwashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.