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The site was identified as important in 2004 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 List1	Season	Year(s)	Size	IBA criteria
Whooper Swan Cygnus cygnus	LC	winter	2003	present	A4i
Brent Goose Branta bernicla	LC	passage	2003	present	A4i
Bean Goose Anser fabalis	LC	winter	2003	present	A4i
Common Goldeneye Bucephala clangula	LC	winter	2003	present	A4i
Greater Scaup Aythya marila	LC	passage	2003	present	A4i
Eurasian Wigeon Mareca penelope	LC	passage	2003	present	A4i
Red-crowned Crane Grus japonensis	VU	breeding	2003	present	A1, A3
Ruddy Turnstone Arenaria interpres	NT	passage	2003	present	A4i
Latham's Snipe Gallinago hardwickii	NT	breeding	2003	present	A3
Grey-tailed Tattler Tringa brevipes	LC	passage	2003	present	A4i
Steller's Sea-eagle Haliaeetus pelagicus	VU	winter	2003	present	A1
Middendorff's Grasshopper-warbler Helopsaltes ochotensis	LC	breeding	2003	present	A3

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2004) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2004. The most recent assessment (2010) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
No known threats	happening now	whole area/population (>90%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Whole area of site (>90%) covered by appropriate conservation designation	A management plan exists but it is out of date or not comprehensive	Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity	medium

Year	Protected Area	Designation	% overlap with IBA
1962	Notsuke furen	都道府県立自然公園	93
1976	Nemuro hanto	沿岸水産資源開発区域	73
2005	Notsuke hanto-Notsukewan	国指定鳥獣保護区	75
2005	Notsuke-hanto and Notsuke-wan	Ramsar Site, Wetland of International Importance	73
2013	Common fishery right area(Hokkaido)	共同漁業権区域	75

Habitat1	Habitat detail	% of IBA
Marine Coastal/Supratidal		major (>10)
Marine Intertidal		major (>10)

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Notsuke, Odaitou (Japan). Downloaded from https://datazone.birdlife.org/site/factsheet/notsuke-odaitou-iba-japan on 22/11/2024.