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 (glaucoides) 1cy, December 10 2011, Petten, the Netherlands. Pictures: Ruud Brouwers & Cock Reijnders.

Age 1cy December: showing dark bill with pale base, dark iris and juvenile plumage (although few scapulars may be replaced by this time of the year).

Primary category: --

Fresh juveniles show chevrons on the tips of the primaries.

Below: December 10 2011, Petten, the Netherlands. Pictures: Ruud Brouwers.

Below: December 10 2011, Petten, the Netherlands. Pictures: Cock Reijnders.