Lesser Kuril Ridge and Kunashir Island

IBA Criteria

Year of most recent IBA criteria assessment: 2016

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Mute Swan Cygnus olor LC unknown 2004 present A4i
Long-tailed Duck Clangula hyemalis VU winter 2004 present A4i
Black Scoter Melanitta americana NT winter 2004 present A1, A4i
Red-breasted Merganser Mergus serrator LC unknown 2004 present A4i
Harlequin Duck Histrionicus histrionicus LC winter 1986 min 3,744 individuals A4i
Common Pochard Aythya ferina VU unknown 2004 present A4i
Baikal Teal Sibirionetta formosa LC breeding 2004 present A1
Falcated Duck Mareca falcata NT breeding 2004 present A4i
Red-crowned Crane Grus japonensis EN breeding 2004 present A1
Red-throated Loon Gavia stellata LC unknown 2004 present A4i
Arctic Loon Gavia arctica LC unknown 2004 present A4i
Short-tailed Albatross Phoebastria albatrus VU non-breeding 2002-2015 20-100 individuals A1
Short-tailed Shearwater Ardenna tenuirostris LC non-breeding 2000-2003 200,000-1,000,000 individuals A4ii
Sooty Shearwater Ardenna grisea NT non-breeding 2000-2003 200,000-1,000,000 individuals A1, A4ii
Red-faced Cormorant Urile urile LC breeding 2015 min 1,466 individuals A4i
Japanese Cormorant Phalacrocorax capillatus LC breeding 2015 min 1,342 individuals A4i
Red Knot Calidris canutus NT passage 2004 present A4i
Spoon-billed Sandpiper Calidris pygmaea CR passage 2004 present A1
Black-legged Kittiwake Rissa tridactyla VU unknown 2004 present A4i
Mew Gull Larus canus LC unknown 2004 present A4i
Rhinoceros Auklet Cerorhinca monocerata LC breeding 2002-2005 min 750,000 individuals A4ii
Spectacled Guillemot Cepphus carbo LC breeding 2005-2015 min 5,100 individuals A4ii
Common Murre Uria aalge LC breeding 2004 present A4ii
Blakiston's Eagle-owl Bubo blakistoni EN resident 2004 present A1
Steller's Sea-eagle Haliaeetus pelagicus VU winter 2004 present A1

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

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Yuzhno-Kuril'skiy reliktovyi les Nature Monument 0 protected area overlaps with site 0
Kurilsky Zapovednik 65,364 protected area overlaps with site 0
Kunashirskiy kustarnikovyi reliktovyi les Nature Monument 0 unknown 155,000


IUCN Habitat Habitat detail Extent (% of site)
Forest Mixed broadleaf-coniferous forest (temp/boreal -
Wetlands (inland) Sand dunes and beaches, Saltpans -
Coastline Rock stacks and islands, Inland cliffs and rocky slopes -
Sea Shallow marine waters, coral reefs and keys -
Shrubland -
Artificial/Terrestrial Urban areas -
For further information about the habitat classification please click here.

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Lesser Kuril Ridge and Kunashir Island. Downloaded from on 24/01/2020.