Björkör and Lågskär Archipelago. 28/05/74; Åland; 6,309 ha; 59°52'N 020°02'E. Natura 2000 SPA. Two archipelago areas comprising two forested islands with freshwater pools, over 150 treeless skerries and rocky islets, and surrounding marine areas. The vegetation of Lågskär Island has recovered after the cessation of grazing in the early 1960s, and is exceptionally diverse considering the harsh archipelago conditions. It is a very important feeding area for waterfowl during migration periods and among the few important wintering areas for Steller's Eider in the Northern Baltic. The underwater banks of Lågskär Archipelago are important feeding areas for waterfowl during migration periods. In spring up to 10,000 of both Eiders and Long-tailed Ducks rest in the area on peak days. Amongst the threatened species hosted by the site are also the Ringed and Grey Seal. Negative impacts are caused by oil pollution, and increased boating in the breeding season causes disturbance to birds. A bird station has been in operation since 1964. Ramsar site no. 4. Most recent RIS information: 2005.