Data Zone
The site was identified as internationally important for bird conservation in 2012 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Brent Goose Branta bernicla | LC | breeding (1974–2009) | 5,000 birds | A4i |
| Marbled Murrelet Brachyramphus marmoratus | EN | winter (-) | present | A1 |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| - | Eel River | Wildlife Area (V) | 2 |
| - | Eel River Estuary | Preserve (V) | 1 |
| - | South Spit | Wildlife Area (V) | 1 |
| - | Mad River Slough | Wildlife Area (V) | 1 |
| - | Fay Slough | Wildlife Area (V) | 1 |
| - | Table Bluff | Ecological Reserve (V) | <1 |
| - | Manila Dunes | Area of Critical Environmental Concern (V) | <1 |
| - | Elk River | Wildlife Area (V) | <1 |
| - | Sounding Seas Beach | Reserve (V) | <1 |
| - | Humboldt Coastal | Nature Center (V) | <1 |
| 1971 | Humboldt Bay | National Wildlife Refuge (IV) | 4 |
| 2010 | EWPP-FPE_Humboldt, CA (06023) | Environmental System (V) | <1 |
| 2011 | WRP_Humboldt, CA (06023) | Environmental System (V) | <1 |
| 2012 | South Humboldt Bay | State Marine Recreational Management Area (Ia) | 1 |
| 2012 | Samoa | State Marine Conservation Area (V) | <1 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Humboldt Bay (USA). Downloaded from
https://datazone.birdlife.org/site/factsheet/humboldt-bay-iba-usa on 25/12/2024.