Species · BCR 5 · BBS 2025 Release · 1966–2024
Hooded Merganser In Northern Pacific Rainforest
Hooded Merganser in Northern Pacific Rainforest has fallen sharply: down 74% on the route-weighted index since 1984.
-74%Since 1984
28Routes In Region
30Years
Notable Signals
long arc declinecomputed index
Hooded Merganser has fallen sharply in Northern Pacific Rainforest: down 74% on the route-weighted index since 1984.
Forecast
If the recent trend holds, Hooded Merganser in Northern Pacific Rainforest is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.06). A 5-year backtest shows a typical error of ±176.5%, with 80% of held-out values landing inside the 95% band.
n/aChange by 2029
0.00Projected 2029 index
0.00–0.0695% range
±176.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.06 |
| 2026 | 0.00 | 0.00 | 0.06 |
| 2027 | 0.00 | 0.00 | 0.06 |
| 2028 | 0.00 | 0.00 | 0.06 |
| 2029 | 0.00 | 0.00 | 0.06 |
Routes In Northern Pacific Rainforest
| Mendota | WASHINGTON | 5 | 1988 |
| Adair | OREGON | 3 | 2004 |
| Pe Ell | WASHINGTON | 3 | 1997 |
| Stikine River | ALASKA | 2 | 2002 |
| Wedderburn | OREGON | 2 | 1990 |
| Glasgow | OREGON | 2 | 2005 |
| Salem | OREGON | 2 | 2013 |
| Riley Peak | OREGON | 2 | 2010 |
| Ilwaco | WASHINGTON | 2 | 2022 |
| Montesand | WASHINGTON | 2 | 1993 |
| Haines | ALASKA | 1 | 1997 |
| Whale Pass | ALASKA | 1 | 2002 |
| Zarembo | ALASKA | 1 | 2004 |
| Salado | OREGON | 1 | 2011 |
| Umpqua | OREGON | 1 | 2023 |
| Nicolai Mtn. | OREGON | 1 | 2006 |
| Trask Summit | OREGON | 1 | 2019 |
| Ozette | WASHINGTON | 1 | 2009 |
| Port Angeles | WASHINGTON | 1 | 2023 |
| Warm Beach | WASHINGTON | 1 | 2010 |
| Camas | WASHINGTON | 1 | 1995 |
| South Elma | WASHINGTON | 1 | 2024 |
| Packwood | WASHINGTON | 1 | 2013 |
| Hurricane Rg | WASHINGTON | 1 | 2023 |
| Rainier | WASHINGTON | 1 | 2019 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.