Gull Research Organisation

(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

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

Yellow J1 and Fed band no 1106-23073, banded in winter on January 23 2013, in St. John's, Newfoundland (LAT: 47.80833; LON: -52.80833).

below: Iceland Gull (kumlieni) J1 1st cycle (2CY), January 26 2013, Quidi Vidi Lake, St. John's, Newfoundland. Picture: Peter Adriaens.

Age 2cy: showing dark bill with slightly paler base, dark iris.

below: Iceland Gull (kumlieni) J1 2nd cycle (3CY), January 14 2014, Quidi Vidi Lake, St. John's, Newfoundland. Picture: Lisa de Leon.