Moerdijk Field Research 2005-2006

(last update: 14 August 2010)
coordinators: 
Roland-Jan Buijs
Theo Muusse
Mars Muusse

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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

Larus fuscus graellsii female LF, 13 May 2006, Moerdijk, the Netherlands.

Iris speckling: 10-20%.