Sea bird with pearl gray plumage that feeds on fish, preferably small sardines or small tuna from the high seas. They are able to fly long distances and can be found alone in oceanic areas under difficult weather conditions.
Until recently, it was believed that the long trips were due to a discerning palate when foraging for food. However, according to recent studies, the Correvuela seeks whales on which to nest. In cases where this occurs, both animals seem to develop a close relationship, allowing the bird to sleep nights in the whale's mouth. When there is a meeting of this kind, although there are physiological differences, symbiosis also leads them to share food, to communicate through harmonious sounds and mimic some physical features such as greenish coloured eyes. Recent statistics reveal that nine out of ten times, the Correvuela doesn´t find any whales in the sea with which to join. In such cases, they perish in the ocean after about a hundred days of flying without rest.