coordinators:
Roland-Jan Buijs
Theo Muusse
Mars Muusse
Home
Introduction
Methods
Age, origin & sex
Retrapped Birds
Upperparts Greytone
Black on Primary Coverts
Black on Primaries
P10 and P9 Patterns
P5 Pattern
Red & Black on Bill
Iris & Orbital Ring
Primary Moult
Discussion
References
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Larus fuscus graellsii adult HU, 14 May 2005, Moerdijk, the Netherlands.
Arrested moult at P1, P2 old. PMS = 5.
![](lbbgbills/lbbgohu/DSC_1791.jpg)
![](lbbgbills/lbbgohu/DSC_1792.jpg)
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