glaucoides - kumlieni

(last update: January 26, 2012)

Kumlien's Gull (kumlieni) adult, February 10 2007, St John's, Newfoundland, Canada. Pictures: Chris Gibbins.

Age adult winter, lacking brown wash on primary coverts.

Wingtip darkness score: 1.5 - medium-pale grey (Estimated Kodak 5-6). In the study by Howell & Mactavish, about 3% of Kumlien's Gulls in New Foundland belong to this category, see Table 1.

Wingtip scoring for dark markings on P5-P10: 0-0-0-1-1-1. 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: -