Albert de Jong
Larus michahellis 2cy PDYZ August 15 2009, Tarragona, Spain. Picture Chris Gibbins.
Ringing data: green PDYZ ringed as pullus in 2008, Ebro Delta, Spain.
Last stage of complete moult: P8 fully grown, no old juvenile primaries left. First-summer michahellis show bewildering variability. This bird is a rather typical example of the more heavily marked type.