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 1st cycle (2CY), January 06 2012, Klaksvík, Faroes. Picture: Silas Olofson.
A dark first cycle, rather dark overall and could be both a dark glaucoides or a pale kumlieni. Still, from what can be seen of the primary tips, it does not seem to have darker outer-webs than inner-webs, rather on the contrary, indicating glaucoides.
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glaucoides - kumlieni