Probably 3rd cal. year, as primary moult has reached around mid-primaries, and about 505 of the secondaries have been renewed. This is too extensive for a 2nd cal. year and in line with 3rd cal. year; however, as usual, it is always difficult to select between a normal 3rd cal-year type and a retarded 4th cal. year. But the stage of moult etc. fits 3rd cal. year.
Jan Jörgensen writes Wednesday November 17th 2010, 10:55 am
Approx. the same moult sequence as for White-tailed but here´s a specific paper on the subject for those who likemoult in pelagicus
JanJ
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Dansk version
David Erterius writes Monday November 15th 2010, 9:10 pm 
