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) 4cy, January 22 2012, Drachten, the Netherlands. Pictures: Rudy Offereins.
Age 4cy: showing obvious bill-band, greater and lesser coverts with brown markings. Iris pale ellow in this individual. Faint pale brown wash on outer primaries, no sub-terminal markings.
Primary category: --
Below: 4cy, January 22 2012, Drachten, the Netherlands. Pictures: Rudy Offereins.
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