Primary Moult Scores (PMS) in armenicus

On 13 September 2010, Larus armenicus were checked at Maagan Michael, Israel by Amir Ben Dov. Compared to August, there is an increase in the number of gulls now at this place, all together about 450 - 500 birds, with still 90% non-adults.

In the sample of 46 adult birds, 5 individuals showed black on the new P3. In this same group of 46 birds, 4 individuals showed a pale iris (class "from very pale to moderate pale", so still with dark spots on the pale background) and all other birds had a dark iris.

Only one single 2cy bird was scored on moult at Maagan Michael, 13 September 2010:

P9 fully grown, P10-60% (PMS=48)
.