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 |
|---|---|---|---|---|
| Surf Scoter Melanitta perspicillata | LC | non-breeding (1974–2009) | 19,777 birds | A4i |
| Black Scoter Melanitta americana | NT | non-breeding (1974–2009) | 10,029 birds | A4i |
| White-winged Scoter Melanitta deglandi | LC | non-breeding (1974–2009) | 7,565 birds | A4i |
| Common Goldeneye Bucephala clangula | LC | non-breeding (1974–2009) | 12,753 birds | A4i |
| Barrow's Goldeneye Bucephala islandica | LC | non-breeding (1974–2009) | 76,131 birds | A4i |
| Red-breasted Merganser Mergus serrator | LC | non-breeding (1974–2009) | 5,213 birds | A4i |
| Harlequin Duck Histrionicus histrionicus | LC | breeding (1974–2009) | 34,600 birds | A4i |
| Harlequin Duck Histrionicus histrionicus | LC | non-breeding (1974–2009) | 54,420 birds | A4i |
| Red-necked Grebe Podiceps grisegena | LC | non-breeding (1974–2009) | 3,679 birds | A4i |
| Horned Grebe Podiceps auritus | VU | non-breeding (1974–2009) | 5,600 birds | A4i |
| Pelagic Cormorant Urile pelagicus | LC | breeding (1974–2009) | 1,034 birds | A4i |
| Pelagic Cormorant Urile pelagicus | LC | non-breeding (1974–2009) | 7,984 birds | A4i |
| Black-legged Kittiwake Rissa tridactyla | VU | breeding (1974–2009) | 87,188 birds | A4i |
| Mew Gull Larus canus | LC | breeding (1974–2009) | 6,497 birds | A4i |
| Mew Gull Larus canus | LC | non-breeding (1974–2009) | 7,130 birds | A4i |
| Glaucous-winged Gull Larus glaucescens | LC | non-breeding (1974–2009) | 14,213 birds | A4i |
| Glaucous-winged Gull Larus glaucescens | LC | breeding (1974–2009) | 30,945 birds | A4i |
| Arctic Tern Sterna paradisaea | LC | breeding (1974–2009) | 10,547 birds | A4i |
| Tufted Puffin Fratercula cirrhata | LC | breeding (1974–2009) | 26,193 birds | A4ii |
| Marbled Murrelet Brachyramphus marmoratus | EN | non-breeding (1974–2009) | 13,851 birds | A4ii |
| Marbled Murrelet Brachyramphus marmoratus | EN | breeding (1974–2009) | 52,876 birds | A4ii |
| Kittlitz's Murrelet Brachyramphus brevirostris | NT | breeding (1974–2009) | 2,719 birds | A4ii |
| Pigeon Guillemot Cepphus columba | LC | breeding (1974–2009) | 11,333 birds | A4ii |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1978 | Copper River Delta | Critical Habitat Area (V) | 2 |
| 1983 | Shoup Bay | State Marine Park (V) | <1 |
| 1983 | Horseshoe Bay | State Marine Park (V) | <1 |
| 1983 | Surprise Cove | State Marine Park (V) | <1 |
| 1983 | Sawmill Bay | State Marine Park (V) | <1 |
| 1983 | South Esther Island | State Marine Park (V) | <1 |
| 1983 | Ziegler Cove | State Marine Park (V) | <1 |
| 1983 | Bettles Bay | State Marine Park (V) | <1 |
| 1990 | Granite Bay | State Marine Park (V) | <1 |
| 1990 | Canoe Passage | State Marine Park (V) | <1 |
| 1990 | Jack Bay | State Marine Park (V) | <1 |
| 1990 | Boswell Bay Beaches | State Marine Park (V) | <1 |
| 1990 | Entry Cove | State Marine Park (V) | <1 |
| 1990 | Decision Point | State Marine Park (V) | <1 |
| 1990 | Entry Cove, State Selection | Alaska State Selection (V) | <1 |
| 2010 | Valdez Duck Flats | Environmental System (V) | <1 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Prince William Sound (USA). Downloaded from
https://datazone.birdlife.org/site/factsheet/prince-william-sound-iba-usa on 22/12/2024.