The other major avian on Great Gull Island is the Roseate Tern (Sterna dougallii), which mostly inhabit the ring of boulders that cover the edges of the island.
On Great Gull Island, besides other bird species, there is a significant population of the Roseate Tern (Sterna dougallii). This tern primarily constructs its nests within the rocky area that borders the island’s edges.