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 puffin population has been steadily expanding over time. Initially, in 1981, there were four breeding pairs on the island's edge, which increased to 37 by 2001. Then, by 2019, the total number of breeding pairs had reached 188.