Prince William Sound


IBA Criteria

Year of most recent IBA criteria assessment: 2012

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
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
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
White-winged Scoter Melanitta deglandi LC non-breeding 1974-2009 7,565 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

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap 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 (2022) Important Bird Areas factsheet: Prince William Sound. Downloaded from http://www.birdlife.org on 24/01/2022.