pardela-de-barrete vs fura-bucho-das-baleares

Great Shearwater and Balearic Shearwater can be distinguished primarily by plumage differences. The Great Shearwater features a distinctive dark cap and brown belly-patch, while the Balearic Shearwater lacks these specific markings. Observing these features with binoculars can help in accurate identification.

Focus on the dark cap and brown belly-patch of the Great Shearwater, which are absent in the Balearic Shearwater. Use binoculars to check for these plumage details.

The Great Shearwater is marked by a dark cap and a brown belly-patch, with a white underwing that has variable brown markings. In contrast, the Balearic Shearwater lacks these specific markings, making the Great Shearwater's plumage more distinctive.