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Location Finland, Länsi-Suomen lääni
Central coordinates 21o 20.00' East  61o 45.00' North
IBA criteria B2, B3, C6
Area 9,716 ha
Altitude
Year of IBA assessment 2000

BirdLife SUOMI-FINLAND



Site description A large archipelago offshore of Merikarvia. The landscape is dominated by large areas of open sea with several groups of numerous scattered islands. The most important part of this site is the large archipelago of Oura, practically unpopulated by man, and encompassing numerous larger, mainly forested islands, and hundreds of small islets and rocks. Iso-Enskeri and Vähä-Enskeri islands hold a remarkable number of Pinus trees in excess of 200 years old.

Key Biodiversity The area holds one of the largest populations of Larus fuscus fuscus in Finland. Important populations of several other island-breeding species also occur.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Lesser Black-backed Gull Larus fuscus breeding  1996  348 breeding pairs  good  B3  Least Concern 
Caspian Tern Hydroprogne caspia breeding  1996  8 breeding pairs  good  B2, C6  Least Concern 

IBA Monitoring

2010 low favourable negligible
Population
Medium - based upon reliable but incomplete / partially representative data

Invasive and other problematic species and genes invasive non-native/alien species/diseases - named species happening now small area/few individuals (<10%) no or imperceptible deterioration low

Larus fuscus Lesser Black-backed Gull 350 350 breeding pairs 100 favourable
Hydroprogne caspia Caspian Tern 8 9 breeding pairs 100 favourable

Some of site covered (10-49%)  No management planning has taken place  Very little or no conservation action taking place  negligible 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Gummandooran saaristo - FI0200075 Birds Directive 3,294 protected area overlaps with site 3,013  
Komopassi-Pitkäniemennokka Protected Areas on Private Land 254 protected area overlaps with site 0  
Mäntyniemennokan-Lammaskarin luonnonsuojelualue Private Nature Reserve 6 protected area overlaps with site 0  
Ouran saaristo - FI0200077 Habitats Directive 3,073 protected area overlaps with site 2,453  
Piuskarin-Pirttikarin luonnonsuojelualue Private Nature Reserve 89 protected area overlaps with site 0  
Pooskerin saaristo - FI0200076 Birds Directive 3,151 protected area overlaps with site 1,599  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Forest   -
Sea Sea inlets and coastal features  -
Coastline   -

Land use

Land-use Extent (% of site)
unknown -

Protection status National Low International None340 ha of IBA covered by Protected Area on Private Lands (Mäntyniennennokka, 7 ha; Komopassi-Pitkäniemennokka, 254 ha; Piuskari-Pirttikari, 86 ha).

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Oura and Enskeri archipelagos. Downloaded from http://www.birdlife.org on 27/12/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife