Habituation to human disturbance by breeding Bridled Terns Sterna anaethetus

Bridled Terns Sterna anaethetus breeding on Penguin Island in south-western Australia allow much closer human approach than they do on remote Bridled Island off the Pilbara coast. This difference in behaviour is attributed to the gradual habituation of Penguin Island terns to the regular presence, and relatively predictable activity, of people at that colony. The management implications for planning human visitation to seabird colonies are discussed.

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