glaucoides - kumlieni
(last update: January 26, 2012)
Kumlien's Gull (kumlieni) adult, February 07 2007, St John's, Newfoundland, Canada. Pictures: Chris Gibbins.
Age adult winter, lacking brown wash on primary coverts.
Wingtip darkness score: 2 - medium grey (Estimated Kodak 7-10). In the study by Howell & Mactavish, about 77% of Kumlien's Gulls in New Foundland belong to this category, see Table 1.
Wingtip scoring for dark markings on P5-P10: 0-0-1-1-1-1. See Plate 1 for explanation.
Wingtip pattern category: Type C, Stage 1; darker grey marks on the outer one to four primaries but no subterminal marks. See primary patterns for explanation. In the study by Howell & Mactavish, about 9% of Kumlien's Gulls in New Foundland belong to this category, see Table 2.
Iris colour variation: -