Caspian Tern behaviour

To: Birding Aus <>
Subject: Caspian Tern behaviour
From: Mick Roderick <>
Date: Tue, 22 Mar 2011 01:23:55 -0700 (PDT)
Hi everyone,

On the way from the wharf out to the heads on Sunday's Port Stephens pelagic 
therefore inside the port) we watched a Caspian Tern harassing a Crested Tern 
incessantly until the Crested let go of the fish it was carrying. The Caspo 
swooped and caught the fish, frigatebird style!

This was something no-one on board had seen before from Caspian Terns and 
according to HANZAB the behaviour is not documented in Australia, but has been 
recorded extralimitally (the reference is to the Western Palearctic Handbook).

Has anyone out there observed this behaviour in Australia? 

There is a short sequence of photographs by Allan Richardson if anyone's 
interested in seeing them.




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