Antarctic Tern vs Grey-faced Petrel

In short

Antarctic Tern and Grey-faced Petrel are distinct in both appearance and behavior. Antarctic Tern is a circumpolar tern with variable plumage and size across populations, while Grey-faced Petrel is a petrel with a characteristic grey face and different ecological niche.

Identification tips

• Plumage: Look for the grey face in Grey-faced Petrel, which is absent in Antarctic Tern.
• Species Group: Remember that Antarctic Tern is a tern, whereas Grey-faced Petrel is a petrel, which affects their flight patterns and behaviors.

Plumage

Antarctic Tern has variable plumage due to its different populations, which may resemble Arctic Terns in winter plumage. Grey-faced Petrel is characterized by its grey face, a feature not seen in terns.