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 (kumlieni) J4 2nd cycle - 10th cycle (2CY-11CY), December 2013 - January 2022, Quidi Vidi Lake, St. John's, Newfoundland. Picture: Alvan Buckley & Lancy Cheng.

Yellow J4, banded as 1st cycle / 1st winter on January 30th, 2013 (HY=2012), in St. John's, Newfoundland (LAT: 47.80833; LON: -52.80833).

below: Iceland Gull (kumlieni) J4 10th cycle (11CY), January 27 2022, Quidi Vidi Lake, St. John's, Newfoundland. Picture: Lancy Cheng.

below: Iceland Gull (kumlieni) J4 3rd cycle (4CY), January 07 2015, Quidi Vidi Lake, St. John's, Newfoundland. Picture: Alvan Buckley.

below: Iceland Gull (kumlieni) J4 3rd cycle (3CY), December 24 2014, Quidi Vidi Lake, St. John's, Newfoundland. Picture: Alvan Buckley.

3rd generation flight feathers. Note brown wash on lower tertials and greater coverts. Typically the upper tertials and median covert row have been replaced more often, and now more adult-like grey.

below: Iceland Gull (kumlieni) J4 2nd cycle (2CY), December 31 2013, Quidi Vidi Lake, St. John's, Newfoundland. Picture: Alvan Buckley.

2nd generation flight feathers (compare to 1st cycle bird right). About half of the scapulars are plain grey without patterns. In fall, a partial autumn moult included the upper tertials and some inner coverts which now (as 3rd gen feathers) show a slightly difefernt pattern.