Pardela Sombría vs Pardela Pichoneta

The Sooty Shearwater and Manx Shearwater can be distinguished by their plumage and structure. Sooty Shearwaters are uniformly dark, while Manx Shearwaters have a distinctive black-and-white pattern. Structural differences include the Sooty Shearwater's larger size and longer wings.

Look for the uniform dark plumage of the Sooty Shearwater versus the black-and-white contrast of the Manx Shearwater. Note the larger size and longer wings of the Sooty Shearwater when observing in flight.

Sooty Shearwater is larger with longer wings compared to the smaller Manx Shearwater.

Sooty Shearwater is uniformly dark brown to sooty gray, whereas Manx Shearwater has a contrasting black upperparts and white underparts.