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

Kumlien's Gull (kumlieni) adult, January 25 2012. Saginaw River, Michigan. Pictures: Dan Duso.

This bird has an especially dark eye. Image 2 provides a comparison with Herring Gull. This would be a "Stage 4" bird, with darker grey or more extensive grey marks on the outer five primaries with complete subterminal bands on zero to three primaries. This stage 4 was scored in 55% of the adult Kumlien's at Newfoundland in the research by Howell & Mactavish. For explanation, see chart.