Pardela Sombría vs Pardela Balear

The Sooty Shearwater and Balearic Shearwater can be distinguished by their plumage and structural differences. The Sooty Shearwater is uniformly dark, while the Balearic Shearwater has a paler underbody. Structural differences include the Sooty Shearwater's longer wings and tail.

Look for the uniformly dark plumage of the Sooty Shearwater versus the paler underbody of the Balearic Shearwater. Note the longer wings and tail of the Sooty Shearwater when in flight.

Sooty Shearwater is generally larger with longer wings compared to the more compact Balearic Shearwater.

Sooty Shearwater is uniformly dark, appearing sooty brown all over. In contrast, the Balearic Shearwater has a paler underbody with a more contrasting appearance between the upperparts and underparts.