Could the dark birds have been dark morph birds? And to answer your question, I
doubt that your description is enough to conclusively call them Arctic, as
their plumages are very similar and Pomarines are still pretty agile when
harassing other birds, but I am happy to be corrected by anybody out there with
a greater knowledge of them (which is likely to be a fair few people).
Cheers
John Graff> We were staying with relatives in Tea Gardens (north side of Port >
Stephens 2 hours north of Sydney) and spent a while on Sunday > afternoon
watching Jaegers and Terns from Bennett's Beach (main surf > beach).> There
were at least 4 or 5 of them harassing Crested Terns within a > couple of
hundred metres of the shore.> 2 had white striking markings - black cap, white
underside and a dark > collar while another couple seemed to be juveniles with
a fairly even > brown colour. They did have white on the base of the primaries
on the > upperwing and some slightly paler areas of brown underneath.> They did
seem quite aerobatic when harassing the terns but also flew > steadily and
swiftly parallel to the beach not far above the water.> Would these
descriptions be enough to call them Arctic or could they > just as easily be
Pomarine Jaegers??> (This is the second time from 2 visits that i have seen
Jaegers here).> > Any help would be appreciated.> > Happy New Year!> > Dave>
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