Pardela Sombría vs Pardela de Bryan

The Sooty Shearwater (Ardenna grisea) is generally larger and more robust than the Bryan's Shearwater (Puffinus bryani), with a uniform dark plumage. In contrast, Bryan's Shearwater is smaller, with a distinctive white underbelly and darker upperparts. These differences are most noticeable when observing the birds in flight.

Look for the larger size and uniform dark plumage of the Sooty Shearwater. In contrast, note the smaller size and contrasting white underbelly of Bryan's Shearwater.

Sooty Shearwater is larger and more robust compared to the smaller and more delicate Bryan's Shearwater.

Sooty Shearwater has a uniform dark plumage, while Bryan's Shearwater features a contrasting white underbelly with darker upperparts.