Species · Alaska · BBS 2025 Release · 1966–2024
Common Loon Population Trend in Alaska
Common Loon in Alaska has declined: down 45% on the route-weighted index since 1978.
-45%Since 1978
78Routes In State
45Years
Notable Common Loon Trends in Alaska
No notable trend signals for Common Loon in Alaska. See the full index history below.
Common Loon Population Forecast in Alaska
If the recent trend holds, Common Loon in Alaska is projected to fall about 59% by 2029 — from 0.58 in 2024 to a central estimate of 0.24 (95% range 0.00–0.65). A 5-year backtest shows a typical error of ±58.1%, with 80% of held-out values landing inside the 95% band.
-59%Change by 2029
0.24Projected 2029 index
0.00–0.6595% range
±58.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.28 | 0.00 | 0.69 |
| 2026 | 0.27 | 0.00 | 0.68 |
| 2027 | 0.26 | 0.00 | 0.67 |
| 2028 | 0.25 | 0.00 | 0.66 |
| 2029 | 0.24 | 0.00 | 0.65 |
Common Loon Survey Routes in Alaska
| Cape Nome | 9 | 2024 | 1998 |
| Willow | 7 | 2024 | 1993 |
| Dillingham | 5 | 2019 | 1993 |
| Skilak Lake | 4 | 1985 | 1978 |
| Cold Bay (Short) | 4 | 1992 | 1985 |
| Mcgrath | 4 | 2022 | 1998 |
| Haines | 3 | 2024 | 1972 |
| Tonsina | 3 | 2018 | 2018 |
| King Salmon | 3 | 2023 | 1994 |
| Lake Louise | 3 | 2011 | 1996 |
| Thorne Bay 2 | 3 | 2022 | 2016 |
| Kuskulana | 3 | 2024 | 1992 |
| Burma Road | 3 | 2023 | 1996 |
| Chena Hot Sp | 2 | 1986 | 1986 |
| Sheep Mtn | 2 | 2011 | 1983 |
| Swan Lake Rd | 2 | 2023 | 1982 |
| Thorne Bay | 2 | 2012 | 1991 |
| Yakutat | 2 | 2023 | 1994 |
| Cold Bay | 2 | 2024 | 1993 |
| Wasilla | 2 | 1983 | 1983 |
| Sitka (Short) | 2 | 1985 | 1985 |
| Harlequin L. | 2 | 2017 | 2017 |
| Galena (Short) | 2 | 2022 | 1998 |
| Dietrich Cmp | 2 | 2024 | 2003 |
| Paxson Lake | 2 | 1997 | 1993 |
Common Loon Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.