Southern Fulmar vs Kerguelen Petrel

The Southern Fulmar and Kerguelen Petrel can be distinguished primarily by their plumage and structure. The Southern Fulmar typically has a more robust build with a thicker neck and a pale gray body, while the Kerguelen Petrel is slimmer with a uniformly dark plumage.

1. Plumage: Look for the pale gray and white coloration of the Southern Fulmar versus the uniformly dark plumage of the Kerguelen Petrel. 2. Structure: Note the Southern Fulmar's thicker neck and more robust body compared to the slimmer build of the Kerguelen Petrel.

Southern Fulmar is generally bulkier, with a more robust body compared to the slimmer Kerguelen Petrel.

Southern Fulmar has a pale gray body with a white head and underparts, whereas the Kerguelen Petrel is uniformly dark, appearing almost black.