Guild
Seabirds
7 species tracked. As a group, seabirds are +84% since 1968.
Guild Signals
No notable trend signals for seabirds. See the full index history below.
Forecast
If the recent trend holds, Seabirds as a group is projected to stay roughly flat through 2029, near 0.01 (95% range 0.00–0.10). A 5-year backtest shows a typical error of ±34%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.01Projected 2029 index
0.00–0.1095% range
±34%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.01 | 0.00 | 0.10 |
| 2026 | 0.01 | 0.00 | 0.10 |
| 2027 | 0.01 | 0.00 | 0.10 |
| 2028 | 0.01 | 0.00 | 0.10 |
| 2029 | 0.01 | 0.00 | 0.10 |
Seabirds By State
| California | -94% | 3 |
| Washington | -72% | 3 |
| Alaska | -16% | 4 |
Member Species
| Common Murre | Alcidae | -97% | 1974 |
| Magnificent Frigatebird | Fregatidae | -80% | 1968 |
| Parasitic Jaeger | Stercorariidae | -73% | 1985 |
| Rhinoceros Auklet | Alcidae | -1% | 1976 |
| Pigeon Guillemot | Alcidae | +17% | 1973 |
| Long-tailed Jaeger | Stercorariidae | +829% | 1986 |
| Marbled Murrelet | Alcidae | 31× | 1977 |