Coordinators:
Dave Brown (Canada)
Bruce Mactavish (Canada)
Chris Gibbins (Scotland)
Peter Adriaens (Belgium)
Mars Muusse (Netherlands)
PDF's
Ringed birds
Iris classification
Primary classification
1cy Aug - Dec
2cy January
2cy February
2cy Mar - Apr
2cy summer
2cy Sept - Dec
3cy January
3cy February
3cy Mar - Apr
3cy summer
3cy Sept - Dec
sub-ad Jan - Apr
sub-ad summer
sub-ad Sept - Dec
adult January
adult February
adult Mar - Apr
adult summer
adult Sept - Dec
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Iceland Gull (glaucoides) 3cy, February 10 2012, near Reykjavik - SW Iceland. Picture: Ómar Runólfsson.
Age 3cy: showing bi-coloured bill with pale base, pale (brown-amber) iris, some grey scapulars, dark barring on most of the coverts and tertials.
Primary category: --
Slighly darker bird with some faint patterns on tips of outer primaries. Still, no obvious contrasting outer-webs, advocating glaucoides 3cy.

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