How many species of petrels?

There are approximately 50 species of petrels, which belong to the family Procellariidae. These seabirds are known for their distinctive tube-like nostrils and are primarily found in the Southern Ocean and other marine environments around the world. Petrels include various genera, such as the fulmars, shearwaters, and the giant petrels. Their adaptability to oceanic life and long-distance foraging make them unique among seabirds.