Larus armenicus

(last update: December 9, 2011)

Home

armenicus 1cy July
armenicus 1cy August
armenicus 1cy Sept
armenicus 1cy Oct
armenicus 1cy Nov
armenicus 1cy Dec

armenicus 2cy Jan
armenicus 2cy Febr
armenicus 2cy March
armenicus 2cy April
armenicus 2cy May
armenicus 2cy June
armenicus 2cy July
armenicus 2cy August
armenicus 2cy Sept
armenicus 2cy Oct
armenicus 2cy Nov
armenicus 2cy Dec

armenicus 3cy Jan
armenicus 3cy Febr
armenicus 3cy March
armenicus 3cy April
armenicus 3cy May
armenicus 3cy June
armenicus 3cy July
armenicus 3cy August
armenicus 3cy Sept
armenicus 3cy Oct
armenicus 3cy Nov
armenicus 3cy Dec

armenicus sub-ad Jan
armenicus sub-ad Febr
armenicus sub-ad March
armenicus sub-ad April
armenicus sub-ad May
armenicus sub-ad June
armenicus sub-ad July
armenicus sub-ad August
armenicus sub-ad Sept
armenicus sub-ad Oct
armenicus sub-ad Nov
armenicus sub-ad Dec

armenicus adult Jan
armenicus adult Febr
armenicus adult March
armenicus adult April
armenicus adult May
armenicus adult June
armenicus adult July
armenicus adult August
armenicus adult Sept
armenicus adult Oct
armenicus adult Nov
armenicus adult Dec

armenicus info
armenicus iris speckling
.

Larus armenicus adults, 15 October 2010, Maagan Michael, Israel. Picture: Amir Ben Dov.

Adult armenicus at the beach. Bird with no old primaries in the wing: P10 has been dropped as well. This is the final stage of the complete moult. Simultaneously, birds finish the moult in the rectrices and finally the gap in the central secondaries will close as well. Common moult stage by mid October is: P7 fully grown, with no old primaries left.

Here: P8 fully grown, (same length as P7), P9 halfway and P10 at 30%. Tail feathers replaced and fully grown. Gap in the central secondaries almost closed (S1-S13 replaced). This bird nicely illustrates the moult sequence in the secondaries: one wave starts in the outer secondaries (next to P1) and progresses inwards towards the body. Another moult wave is initiated from the tertials and runs outwards. The two wave meet at S16-S18 approximately.