Data Zone
The site was identified as internationally important for bird conservation in 2000 because it was regularly supporting significant populations of the species listed below, meeting IBA criteria.
Populations meeting IBA criteria ('key species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| European Storm-petrel Hydrobates pelagicus | LC | breeding (1989) | 5,000 breeding pairs | A4ii, B1ii, B2 |
| Atlantic Puffin Fratercula arctica | VU | breeding (1989) | 40,000 breeding pairs | B1ii, B2 |
| Black Guillemot Cepphus grylle | LC | breeding (1989) | 200 breeding pairs | A4ii, B1ii |
| A4iii Species group - seabirds | n/a | breeding (1989) | 20,000-49,999 breeding pairs | A4iii |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Grassland | - | |
| Marine Coastal/Supratidal | - |
| Land use | % of IBA |
|---|---|
| agriculture | - |
Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Kalsoy (Faroe Islands (to Denmark)). Downloaded from
https://datazone.birdlife.org/site/factsheet/kalsoy-iba-faroe-islands-(to-denmark) on 18/01/2025.