Shearwaters are medium to large seabirds belonging to the family Procellariidae. They are known for their long wings and ability to glide over ocean waves for long distances. These birds are often found in the Southern Hemisphere, although some species migrate to the Northern Hemisphere during breeding seasons. These birds primarily feed on fish and squid, which they catch by diving or skimming the water's surface. Shearwaters are also known for their distinctive, graceful flight patterns and are often seen in large flocks. Their breeding habits involve nesting in burrows on remote islands, where they raise their young.