By Emma Orr
Two species of seal inhabit the coast and seas around Northern Ireland, according to the Department of Agriculture, Environment and Rural Affairs (Daera).
The harbour seal is smaller, has a dog-like face and prefers more sheltered areas.
The grey seal is larger, has a longer head and is more often seen in exposed areas.
In 2024 there were about 1,185 harbour seals on the coastline around Northern Ireland, compared to an estimated 3,165 grey seals.
Because of the lower population numbers, the sanctuary has prioritised conservation efforts around harbour seals.
“The tight window between June and July when harbour seal pups are born is our biggest concern,” Mr Morrison said.
“They are the smaller of the two species and their numbers have not done as well as the grey seals.”