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The site was identified as important in 2006 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
Ruddy-headed Goose Chloephaga rubidiceps	LC	breeding	2005	10 breeding pairs	A2
Falkland Steamerduck Tachyeres brachypterus	LC	breeding	2005	present	A2
Gentoo Penguin Pygoscelis papua	LC	breeding	2005	12,300 breeding pairs	A1, A4ii
Macaroni Penguin Eudyptes chrysolophus	VU	breeding	2005	10 breeding pairs	A1
Southern Rockhopper Penguin Eudyptes chrysocome	VU	breeding	2005	142,000 breeding pairs	A1, A4ii
Magellanic Penguin Spheniscus magellanicus	LC	breeding	2005	abundant	A1
Black-browed Albatross Thalassarche melanophris	LC	breeding	2005	213,800 breeding pairs	A1, A4ii
Southern Giant Petrel Macronectes giganteus	LC	breeding	2005	1,500 breeding pairs	A1, A4ii
Striated Caracara Phalcoboenus australis	NT	breeding	2005	250 breeding pairs	A1, A2
Blackish Cinclodes Cinclodes antarcticus	NT	breeding	2005	abundant	A2
Cobb's Wren Troglodytes cobbi	LC	breeding	2005	abundant	A1, A2
White-bridled Finch Melanodera melanodera	LC	breeding	2005	present	A2
A4iii Species group - seabirds	n/a	breeding	2005	100,000-499,999 breeding pairs	A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2006) may differ.

Year	Protected Area	Designation	% overlap with IBA
-	Seal Rocks S2D7	Nature Reserve	-
-	Seal Rocks S2D6	Nature Reserve	-
-	Seal Rocks S2D5	Nature Reserve	-
-	Seal Rocks S2D4	Nature Reserve	-
1966	Flat Jason	Nature Reserve	11
1973	South Jason	Nature Reserve	11
1973	Elephant Jason	Nature Reserve	8
1973	North Fur	Nature Reserve	2
1973	Jason West Cay	Nature Reserve	1
1973	Jason East Cay	Nature Reserve	1
1973	The Fridays	Nature Reserve	1
1973	South Fur	Nature Reserve	1

Habitat1	Habitat detail	% of IBA
Grassland	Southern temperate grassland	major (>10)
Marine Coastal/Supratidal		major (>10)

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Jason Islands Group (Falkland Islands (Malvinas)). Downloaded from https://datazone.birdlife.org/site/factsheet/jason-islands-group-iba-falkland-islands-(malvinas) on 22/11/2024.