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 ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Whooper Swan Cygnus cygnus | LC | breeding (1976–1984) | 200 pairs | B1i |
| Common Loon Gavia immer | LC | breeding (-) | common | A4i, B1i |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Wetlands (inland) | 50 | Standing freshwater; Rivers and streams; Blanket bogs; Fens, transition mires and springs |
| Rocky areas (eg. inland cliffs, mountain peaks) | 40 | |
| Shrubland | 10 | Heathland |
| Land use | % of IBA |
|---|---|
| agriculture | - |
| tourism/recreation | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Arnarvatnsheidi-Tvidaegra (Iceland). Downloaded from
https://datazone.birdlife.org/site/factsheet/arnarvatnsheidi-tvidaegra-iba-iceland on 23/12/2024.