The Cape Petrel is a striking, black-and-white petrel of the Southern Ocean. They have black heads, white underparts, and boldly mottled black-and-white upperwings, backs, and tails. This species breeds on cliffs or rocky slopes in Antarctica and on subantarctic islands. In the non-breeding season, individuals disperse widely in the Southern Ocean, moving north as far as the Humboldt Current off Peru and southern Brazil in the Atlantic. Birds often follow feeding whales or trawlers, where they gather in large groups and feed both diurnally and nocturnally. They apparently use olfaction to help locate food. Nesting may be either colonial or solitary depending on the location, and nest placement is rather catholic.