An island with rugged coasts, steep cliffs, boulder-screes, and grass slopes with important seabird colonies. Inland there are heath and moorland areas. Land-uses include sheep-grazing.
Nólsoy holds internationally important seabird colonies, with c.90,000 pairs of breeding seabird.
BirdLife International (2019) Important Bird Areas factsheet: Nólsoy. Downloaded from http://www.birdlife.org on 21/07/2019.