glaucoides - kumlieni

(last update: January 26, 2012)
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

Iceland Gull 1st cycle (2CY) January 23 2013, Quidi Vidi Lake, St. John's, Newfoundland. Picture: Jan Baert.

Age 2cy: black bill, dark iris and most upper scapulars replaced. Outer primaries with "ghost pattern of thayeri": dark centres running almost to tips and pale V-fringes. Bird lacking chevrons near primary tips (which would be typical in glaucoides).