Around the Greater Dyer Island area we encounter both species of Giant Petrel, the Southern Giant Petrel and Northern Giant Petrel.
Conservation status: Least Concern
Frequently Asked Questions
What is the difference between the two species?
The visible difference between the two species is the bill tip. The bill tip of a Southern Giant Petrel will have a greenish tinge whereas the one of Northern Giant Petrel will be red in colour.
General information and diet:
These seabirds breed on the Prince Edward Islands, Crozet Islands, Kerguelen Islands, Macquarie Island, and South Georgia, many southern giant petrels nest farther south but are often seen during the summer months around Dyer Island. Giant Petrels are known to be aggressive scavengers and are often seen feeding on Cape fur seal pups in this area.
Fun Fact: The Southern Giant Petrel is slightly larger than the Northern Giant Petrel but both can have a wingspan of just over two meters.