Marstal Bugt and the coast of south-west Langeland

Country/territory: Denmark

IBA Criteria met: B1iv, C5 (2000)
For more information about IBA criteria please click here

Area: 4,980 ha

Dansk Ornitologisk Forening
Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2010 not assessed very unfavourable not assessed
For more information about IBA monitoring please click here

Site description
A shallow coastal area surrounded by cultivated fields. Some former sea inlets have been dammed and converted to freshwater lakes and meadows. The IBA includes southern Langeland, comprising clay cliffs, broadleaved forest (including non-intensively managed forest dominated by Corylus and Carpinus), a brackish lagoon, chalk-rich meadows and agricultural land.

Key biodiversity
Southern Langeland is an important bottleneck site for raptors during autumn migration. Numbers for the 1993 to 1996 period average 11,055 birds per season (minimum 7,293, maximum 15,896), with large annual fluctuations being the result of variable prevailing winds, and changes in observer coverage. Species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (max. 5, passage). Botaurus stellaris and Circus aeruginosus, listed on Annex I of the EC Birds Directive, breed at the site.

Raptors MOU - IBA listed under Table 3 of the Memorandum of Understanding on the Conservation of Migratory Birds of Prey in Africa and Eurasia

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Marstal Bugt and the coast of south-west Langeland. Downloaded from on 28/01/2023.