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The site was identified as important in 2009 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
Swan Goose Anser cygnoid	EN	passage	2003	present	A1, A4i
Bean Goose Anser fabalis	LC	non-breeding	2003	present	A4i
Common Shelduck Tadorna tadorna	LC	non-breeding	2003	present	A4i
Ruddy Shelduck Tadorna ferruginea	LC	unknown	2003	present	A4i
Baer's Pochard Aythya baeri	CR	passage	2003	present	A1
Siberian Crane Leucogeranus leucogeranus	CR	passage	2003	present	A1, A4i
White-naped Crane Grus vipio	VU	passage	2003	present	A1
Red-crowned Crane Grus japonensis	VU	breeding	2003	present	A1, A4i
Oriental Stork Ciconia boyciana	EN	winter	2003	present	A1, A4i
Chinese Egret Egretta eulophotes	VU	passage	2003	present	A1
Eurasian Oystercatcher Haematopus ostralegus	NT	unknown	2008	present	A4i
Grey Plover Pluvialis squatarola	VU	unknown	2008	present	A4i
Kentish Plover Charadrius alexandrinus	LC	breeding	2008	present	A4i
Whimbrel Numenius phaeopus	LC	unknown	2008	present	A4i
Eurasian Curlew Numenius arquata	NT	passage	2008	present	A4i
Far Eastern Curlew Numenius madagascariensis	EN	passage	2008	present	A4i
Bar-tailed Godwit Limosa lapponica	NT	unknown	2008	present	A4i
Black-tailed Godwit Limosa limosa	NT	passage	2008	present	A4i
Great Knot Calidris tenuirostris	EN	passage	2003	present	A4i
Red Knot Calidris canutus	NT	unknown	2008	present	A4i
Dunlin Calidris alpina	NT	unknown	2008	present	A4i
Terek Sandpiper Xenus cinereus	LC	unknown	2008	present	A4i
Saunders's Gull Saundersilarus saundersi	VU	breeding	2003	present	A1, A4i
Marsh Grassbird Helopsaltes pryeri	NT	resident	2003	present	A1
A4iii Species group - waterbirds	n/a	unknown	2003	min 20,000 individuals	A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2009) may differ.

Year	Protected Area	Designation	% overlap with IBA
1988	Shuangtaihekou	Nature Reserve	98
2004	Shuangtai Estuary	Ramsar Site, Wetland of International Importance	98

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

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Shuangtai (Shuangtaizi) Estuary and Inner Gulf of Liaodong (China (mainland)). Downloaded from https://datazone.birdlife.org/site/factsheet/shuangtai-(shuangtaizi)-estuary-and-inner-gulf-of-liaodong-iba-china-(mainland) on 22/11/2024.