An island with rugged coasts, steep cliffs, boulder-screes, and grass slopes. Land-uses include sheep-grazing. The site comprises the northern and western coastline of the island.
This is an internationally important seabird colony with c.70,000 pairs of breeding seabird, including Rissa tridactyla (15,600 pairs) and Uria aalge (10,700 individuals).
BirdLife International (2020) Important Bird Areas factsheet: Kalsoy. Downloaded from http://www.birdlife.org on 26/10/2020.