Came across this flock of Caspian Terns while waiting for the ferry on Stradbroke Island. There was also a large flock of Pied Oystercatchers with them. As we got closer to the flock, Eastern Curlew and Bar-tailed Godwit flew off. We thought that maybe they have not long arrived back as they were not at this site two days before when we checked it out.
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Caspian Tern (Sterna caspia)