Marine,normally occurring of-shore,except near colonies. Outside breding season,it occurs in areas of upwelling. Breeds on islands,usually inland on highland plateaux or on slopes with grass & shrubs;also in caves & crevices
"Broadly Sept to April." (HANZAB,1,p.248)
Disperses widely over southern Inidan Ocean,ranging north to South Africa and Australia. Some wander further east to New Zealand,apparently immatures.