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Lokalitet:
Anadyr, Chukotka - Rusland (udenfor VP)
2010-06-03
Fotograf: David Erterius - Se profil

Beskrivelse: A subadult individual, probably a 3rd calendar year. Comments on this are welcome.

Uploadet 2010-11-14 Publiceret 2010-11-14 Haliaeetus pelagicus Steller's Sea Eagle
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Kommentarer
David Erterius
15. nov. 2010 kl. 21:10
Found a selection of various ages at swedish photographer Lars Petersson's website: http://www.larsfoto.se/sv/galleri/specialgallerier/aldersbestamning-av-jattehavsorn?res=1050 Shouldn't a 2nd c y be ruled out by the moult contrast in the remiges? Could a 4th c y be an option?
Klaus Malling Olsen
15. nov. 2010 kl. 21:27
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
17. nov. 2010 kl. 10:55
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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