Two subfamilies of storm petrel were traditionally recognized. Oceanites is a genus of seabird in the austral storm petrel family. Several species of storm petrel are threatened by human activities. It is very difficult to accurately determine Storm Petrel populations. This species was almost indistinguishable from its relative, Leach's storm petrel. Several species of austral storm petrel are threatened by human activities. However, they have been found to consume prey as large as the ashy storm petrel. A sailing superstition holds that the appearance of a storm petrel foretells bad weather. Unlike the storm petrel, it does not follow ships. The cryptic species was once considered to be conspecific with the band-rumped storm petrel. Tristram's storm petrel is considered near threatened. The species is also known as the white-vented storm petrel. Maxim Gorky wrote "The Song of the Storm Petrel" in March 1901 in Nizhny Novgorod. In the spring and summer pigeon guillemot and Leach's storm petrel nest on the island. One species, the Guadalupe storm petrel, is thought to have gone extinct.