Genus Puffinus is a group of seabirds commonly known as shearwaters. Shearwaters are long-winged and primarily pelagic, meaning they spend most of their time at sea. The genus Puffinus is part of the family Procellariidae, which also includes albatrosses and petrels. Other synonyms for Puffinus include Fulmarus, Calonectris, Ardenna, and Procellaria. These synonyms represent different taxonomic classifications that have been used in the past, but Puffinus is now recognized as the correct name for this group of shearwaters. These birds are important indicators of the health of marine ecosystems, and their conservation is essential for maintaining the biodiversity of our oceans.