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The site was identified as important in 2003 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
Tundra Swan Cygnus columbianus	LC	passage	1991-1999	200-500 individuals	A4i, B1i, C2
Barnacle Goose Branta leucopsis	LC	breeding	2002	70-80 breeding pairs	C2, C6
Barnacle Goose Branta leucopsis	LC	passage	1994-2000	12,200 individuals	A4i, B1i, C2
Greylag Goose Anser anser	LC	passage	1991-2000	660-1,050 individuals	B1i, C3
Long-tailed Duck Clangula hyemalis	VU	passage	1995-1996	50,000-195,000 individuals	A4i, B1i, C3
Common Goldeneye Bucephala clangula	LC	non-breeding	1999-2000	4,500 individuals	A4i, B1i, C3
Horned Grebe Podiceps auritus	VU	breeding	2002	5-10 breeding pairs	C6
Common Crane Grus grus	LC	passage	1991-2000	600-1,500 individuals	B1i, C2
Pied Avocet Recurvirostra avosetta	LC	breeding	1991-2000	3-10 breeding pairs	C6
Little Tern Sternula albifrons	LC	breeding	2002	7-10 breeding pairs	C6
Caspian Tern Hydroprogne caspia	LC	breeding	2002	5-10 breeding pairs	C6
Common Tern Sterna hirundo	LC	breeding	2002	250-300 breeding pairs	C6
Arctic Tern Sterna paradisaea	LC	breeding	2002	380-500 breeding pairs	C6
Western Marsh-harrier Circus aeruginosus	LC	breeding	1991-2000	10-20 breeding pairs	C6
A4iii Species group - waterbirds	n/a	passage	1995	100,000-499,999 individuals	A4iii, C4

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2003) may differ.

Year	Protected Area	Designation	% overlap with IBA
1959	Veske saar	Kaitstav looduse üksikobjekt	-
1959	Koogila kivi	Kaitstav looduse üksikobjekt	-
1973	Kübassaare maastikukaitseala	Maastikukaitseala (looduspark)	3
1973	Kübassaare maastikukaitseala	Landscape Protection Area	3
1990	West Estonian Archipelago	UNESCO-MAB Biosphere Reserve	100
2003	VEP nr.149023	Woodland key habitat	<1
2003	VEP nr.149025	Võtmebiotoop ehk vääriselupaik	<1
2003	VEP nr.130083	Woodland key habitat	<1
2003	VEP nr.131015	Woodland key habitat	<1
2004	Kahtla-Kübassaare	Site of Community Importance (Habitats Directive)	97
2004	Kahtla-Kübassaare	Special Protection Area (Birds Directive)	97
2005	Kübassaare MKA, Anikaitse pv.	Maastikukaitseala piiranguvöönd	1
2005	Kübassaare MKA, Kübassaare metsa skv.	Maastikukaitseala hooldatav sihtkaitsevöönd	1
2005	Kübassaare MKA, Udriku skv.	Maastikukaitseala hooldatav sihtkaitsevöönd	1
2005	Kübassaare MKA, Merelaidude skv.	Maastikukaitseala hooldatav sihtkaitsevöönd	<1
2007	Kahtla-Kübassaare hoiuala	Hoiuala	94
2007	Kahtla-Kübassaare hoiuala	Limited Management Zone	93
2010	Muraja püsielupaik	Species Protection Site	<1
2010	Ruhve püsielupaik	Species Protection Site	<1
2011	VEP nr.L01402	Woodland key habitat	<1
2011	VEP nr.L01403	Võtmebiotoop ehk vääriselupaik	-
2011	VEP nr.L00514	Woodland key habitat	-
2011	VEP nr.L00515	Woodland key habitat	-
2011	VEP nr.L01432	Woodland key habitat	<1

Habitat1	Habitat detail	% of IBA
Marine Neritic		76
Shrubland		10
Forest	Native coniferous woodland, Broadleaved deciduous woodland	5
Wetlands (inland)	Water fringe vegetation	5
Grassland		2

1. IUCN Habitat classification.

Land use	% of IBA
nature conservation and research	92
fisheries/aquaculture	75
forestry	5
agriculture	2
hunting	-
tourism/recreation	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Kahtla-Kübassaare (Estonia). Downloaded from https://datazone.birdlife.org/site/factsheet/kahtla-kübassaare-iba-estonia on 22/11/2024.