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成熟度: Lm? range ? - ? cm Max length : 70.0 cm TL 雄魚/尚未辨別雌雄; (參考文獻 91362); 最大體重: 3.1 kg (參考文獻 356)
Population decline was recorded in the 19th century wherein 295,000 birds in 1956 became 170,000 birds in 1978. Threats include oil pollution, fisheries, and competition for food and space (Ref. 84934). This is a gregarious species that is commonly found in small groups and within 50 km of shoreline. It breeds in huge colonies in burrows (Ref. 91362), mainly on offshore islands (Ref. 84934). Underwater pursuit (Ref. 356).
