Species · BCR 4 · BBS 2025 Release · 1966–2024
Ring-necked Duck In BCR 4
Ring-necked Duck in BCR 4 has edged up: up 15% on the route-weighted index since 1989.
+15%Since 1989
22Routes In Region
32Years
Notable Signals
No notable trend signals for Ring-necked Duck in BCR 4. See the full index history below.
Forecast
If the recent trend holds, Ring-necked Duck in BCR 4 is projected to stay roughly flat through 2029, near 0.26 (95% range 0.00–0.56). A 5-year backtest shows a typical error of ±115.8%, with 100% of held-out values landing inside the 95% band.
-5%Change by 2029
0.26Projected 2029 index
0.00–0.5695% range
±115.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.26 | 0.00 | 0.56 |
| 2026 | 0.26 | 0.00 | 0.56 |
| 2027 | 0.26 | 0.00 | 0.56 |
| 2028 | 0.26 | 0.00 | 0.56 |
| 2029 | 0.26 | 0.00 | 0.56 |
Routes In BCR 4
| Chena Hot Spring 2 | ALASKA | 8 | 2015 |
| Kuskulana | ALASKA | 8 | 2023 |
| Delta | ALASKA | 6 | 2024 |
| Birch Lake | ALASKA | 5 | 2001 |
| Maclaren | ALASKA | 5 | 2016 |
| Hatcher Pass | ALASKA | 5 | 2013 |
| Petersville | ALASKA | 5 | 2017 |
| Nabesna Road | ALASKA | 5 | 1997 |
| Sourdough | ALASKA | 4 | 2024 |
| Mccarthy Rd2 | ALASKA | 4 | 2022 |
| Monahan | ALASKA | 3 | 2003 |
| Slana | ALASKA | 2 | 2022 |
| Northway | ALASKA | 2 | 2002 |
| Swan Lake Rd | ALASKA | 2 | 2006 |
| Lake Louise | ALASKA | 2 | 1997 |
| Kanuti Lake | ALASKA | 2 | 2022 |
| Circle | ALASKA | 1 | 1992 |
| Toklat | ALASKA | 1 | 2019 |
| Kenny Lake | ALASKA | 1 | 2011 |
| Burma Road | ALASKA | 1 | 2009 |
| Donelly Dome | ALASKA | 1 | 2022 |
| Kanuti Canyn | ALASKA | 1 | 2017 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.