These rather pointy looking birds are Brown Boobys (Sula leucogaster).They are resting on and having a small domestic dispute about the ownership of a marker buoy at Mackay Reef on the Great Barrier Reef.
For those of you with an eye for such things you will have noticed how similar they are to Gannets – in fact they are in the same genus.
I tried to sneak up on these birds in the water – but (surprise, surprise) they were rather suspicious of a large wet suit clad object heading towards them.
So in the end I had to be content with taking pictures from a rather rocky boat – oh the joy of digital!
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