Prince William Sound


IBA Justification

The site was identified as important in 2012 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Surf Scoter Melanitta perspicillata LC non-breeding 1974-2009 19,777 individuals A4i
Black Scoter Melanitta americana NT non-breeding 1974-2009 10,029 individuals A4i
White-winged Scoter Melanitta deglandi LC non-breeding 1974-2009 7,565 individuals A4i
Common Goldeneye Bucephala clangula LC non-breeding 1974-2009 12,753 individuals A4i
Barrow's Goldeneye Bucephala islandica LC non-breeding 1974-2009 76,131 individuals A4i
Red-breasted Merganser Mergus serrator LC non-breeding 1974-2009 5,213 individuals A4i
Harlequin Duck Histrionicus histrionicus LC breeding 1974-2009 34,600 individuals A4i
Harlequin Duck Histrionicus histrionicus LC non-breeding 1974-2009 54,420 individuals A4i
Red-necked Grebe Podiceps grisegena LC non-breeding 1974-2009 3,679 individuals A4i
Horned Grebe Podiceps auritus VU non-breeding 1974-2009 5,600 individuals A4i
Pelagic Cormorant Urile pelagicus LC breeding 1974-2009 1,034 individuals A4i
Pelagic Cormorant Urile pelagicus LC non-breeding 1974-2009 7,984 individuals A4i
Black-legged Kittiwake Rissa tridactyla VU breeding 1974-2009 87,188 individuals A4i
Mew Gull Larus canus LC breeding 1974-2009 6,497 individuals A4i
Mew Gull Larus canus LC non-breeding 1974-2009 7,130 individuals A4i
Glaucous-winged Gull Larus glaucescens LC non-breeding 1974-2009 14,213 individuals A4i
Glaucous-winged Gull Larus glaucescens LC breeding 1974-2009 30,945 individuals A4i
Arctic Tern Sterna paradisaea LC breeding 1974-2009 10,547 individuals A4i
Tufted Puffin Fratercula cirrhata LC breeding 1974-2009 26,193 individuals A4ii
Marbled Murrelet Brachyramphus marmoratus EN non-breeding 1974-2009 13,851 individuals A4ii
Marbled Murrelet Brachyramphus marmoratus EN breeding 1974-2009 52,876 individuals A4ii
Kittlitz's Murrelet Brachyramphus brevirostris NT breeding 1974-2009 2,719 individuals A4ii
Pigeon Guillemot Cepphus columba LC breeding 1974-2009 11,333 individuals A4ii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2012).


IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Ziegler Cove State Marine Park 291 protected area overlaps with site 0
Valdez Duck Flats Environmental System 8 protected area contained by site 0
Valdez Environmental System 58 protected area is adjacent to site 0
Surprise Cove State Marine Park 907 protected area overlaps with site 0
South Esther Island State Marine Park 1,343 protected area overlaps with site 0
Shoup Bay State Marine Park 1,541 protected area overlaps with site 0
Sawmill Bay State Marine Park 607 protected area overlaps with site 0
Olsen Bay Creek Research Natural Area 2,762 protected area is adjacent to site 0
Nellie Juan-College Fiord Wilderness Study Area 884,437 protected area is adjacent to site 0
Jack Bay State Marine Park 624 protected area overlaps with site 0
Horseshoe Bay State Marine Park 400 protected area overlaps with site 0
Green Island Research Natural Area 1,031 protected area is adjacent to site 0
Granite Bay State Marine Park 1,323 protected area overlaps with site 0
Entry Cove, State Selection Alaska State Selection 2 protected area overlaps with site 0
Entry Cove State Marine Park 485 protected area overlaps with site 0
Duck Marsh Subdivision Environmental System 10 protected area is adjacent to site 0
Decision Point State Marine Park 308 protected area overlaps with site 0
Copper River Delta Critical Habitat Area 219,814 protected area overlaps with site 0
Canoe Passage State Marine Park 560 protected area overlaps with site 0
Boswell Bay Beaches State Marine Park 1,233 protected area overlaps with site 0
Bettles Bay State Marine Park 274 protected area overlaps with site 0
Alaska Maritime National Wildlife Refuge 2,637,840 protected area is adjacent to site 0


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Prince William Sound. Downloaded from https://datazone.birdlife.org/site/factsheet/prince-william-sound-iba-usa on 21/02/2024.