The number of young puffins has gradually increased. In 1981, four pairs nested beneath boulders at the edge of the island and the colony had increased to 37 pairs in 2001. The total population reached 188 pairs in 2019.
The increase in young puffins has been a gradual process. In 1981, four breeding pairs existed on the island's edge, and this number grew to 37 by 2001. By 2019, the overall population had increased to 188 breeding pairs.